15 Best Night Lights for Kids’ Rooms That Make Bedtime Magical

Looking for the best night lights that turn bedtime into a magical experience? I recommend options with vibrant colors, soothing projections, and adjustable modes that suit your child’s comfort. Many lights come with features like starry skies, remote controls, timers, and safe, child-friendly designs. Whether you want calming nebula effects or fun shapes, there’s something for every kid. Stay tuned—if you keep exploring, you’ll find the perfect glow to make their nights special.

Key Takeaways

• Features multiple vibrant colors, calming nebula effects, and adjustable brightness to create a magical bedtime atmosphere.
• Compact, child-friendly designs like stars, hearts, and unicorns enhance room decor and appeal to kids.
• Offers versatile projection options, covering large areas with starry skies or themed images for immersive experiences.
• Includes safe, non-toxic materials with automatic shut-off, timers, and cool-to-the-touch design for worry-free use.
• Equipped with remote controls, timers, and sound options to customize lighting and foster a soothing bedtime routine.

GE Color Changing LED Night Light for Kids

If you’re looking for a night light that creates a soothing and fun atmosphere for your child’s room, the GE Color Changing LED Night Light is an excellent choice. It offers eight vibrant colors and three modes: solid, color-changing, and soft white. The touch control makes switching modes easy, while the dusk-to-dawn sensor automatically turns the light on at dusk and off at dawn, saving energy. Its compact, plug-in design leaves the second outlet free, and it’s UL-certified for safety. With a sleek look and adjustable color temperature, this night light provides gentle illumination that helps kids feel safe and cozy all night long.

Best For: parents seeking a safe, versatile, and energy-efficient night light to create a calming atmosphere in children’s bedrooms, nurseries, or hallways.

Pros:

• Offers 8 vibrant colors and 3 lighting modes, including solid, color-changing, and soft white, for customizable ambiance.
• Equipped with a dusk-to-dawn sensor that automatically turns on/off, conserving energy and providing convenience.
• Compact, plug-in design leaves the second outlet free and features touch control for easy mode switching.

Cons:

• Not water-resistant, so suitable only for indoor use in dry environments.
• Maximum light output is 4 lumens, which may be insufficient for larger or darker rooms.
• Plastic construction, while durable, may not have a premium feel compared to more decorative night lights.

One Fire Night Light for Kids Gifts, 6 Films+78 Lighting Modes Ceiling Star Projector

The One Fire Night Light for Kids stands out as an ideal gift for children who love to explore their imagination and feel secure at bedtime. Its star-shaped design projects vivid scenes like stars, moons, unicorns, dinosaurs, jellyfish, and Christmas themes, creating an enchanting atmosphere. With 78 lighting modes and 6 films, it offers endless ways to customize the ambiance. Lightweight and rechargeable, it’s perfect for portable use and doubles as charming room decor. The quiet 360° rotation enhances the projection without disturbing sleep, making it a comforting, fun, and versatile bedtime companion for kids of all ages.

Best For: parents seeking a safe, engaging, and calming night light and projector to foster imagination and security for children during bedtime.

Pros:

• Features 6 vivid films and 78 customizable lighting modes to create diverse, enchanting environments.
• Rechargeable with a long-lasting battery and lightweight design for portable, cordless use.
• Quiet 360° rotation ensures immersive projection without disturbing sleep.

Cons:

• May require frequent recharging for extended use beyond 5-7 hours.
• Some children might find the variety of modes overwhelming or distracting.
• Limited control over individual projection effects without a dedicated remote or app.

Star Projector Galaxy Night Light with Remote

A great choice for calming bedtime routines, the Star Projector Galaxy Night Light with Remote offers customizable nebula effects and soothing green stars that create a peaceful atmosphere. With support for eight different nebula effects and adjustable breathing stars, it transforms any room into a calming galaxy. The remote control allows you to easily adjust brightness, rotation speed, and breathing rate, while auto-off timers of 45 or 90 minutes make it perfect for sleep. Its versatile design suits bedrooms, game rooms, or home theaters, and the astronaut-themed appearance adds a fun decorative touch. This night light makes a thoughtful gift for kids and star lovers alike.

Best For: those seeking a calming, customizable night light that enhances bedroom decor and creates a relaxing galaxy atmosphere for kids, adults, and star enthusiasts.

Pros:

• Supports 8 nebula effects with adjustable breathing stars for personalized ambiance
• Remote control allows easy adjustment of brightness, rotation, and breathing rate
• Auto-off timers (45/90 minutes) promote convenient, safe sleep routines

Cons:

• May require batteries or power source not included
• Some users might find the astronaut design less suitable for minimalist decor
• Limited to galaxy projection effects; not a multi-color or multi-theme light

Night Light for Kids with Star Projector and Color Changing LEDs

Kids who love dreamy, starry skies will find this night light with a star projector and color-changing LEDs the perfect addition to their room. It features a charming star-themed design with a dome that projects clear patterns up to 15 feet, covering 250 square feet. The device offers four LED bulbs with 16 vibrant colors, adjustable brightness, and 360-degree rotation for customizable lighting. Easy to operate via buttons or touch, it switches between star projection and nightlight modes. Made of durable plastic and powered by USB or batteries, it creates a warm, magical atmosphere that’s perfect for bedtime, parties, or special occasions.

Best For: parents seeking a charming, versatile night light and star projector to create a soothing, magical atmosphere in children’s bedrooms, suitable for ages 3-8.

Pros:

• Offers customizable lighting with 16 vibrant colors, adjustable brightness, and 360-degree rotation for a personalized experience
• Projects clear starry sky patterns up to 15ft, covering 250 square feet, ideal for creating a cozy ambiance
• Easy to operate via touch or buttons, with dual modes for star projection and nightlight, plus powered by USB or batteries for convenience

Cons:

• Requires batteries (not included), which may need frequent replacement depending on usage
• Not water-resistant overall, limiting outdoor or humid environment use
• Limited to indoor use, so it’s not suitable for outdoor settings or areas with water exposure

COOLNIGHT Kids Night Light Projector with Star Films and Remote

If you’re looking for a versatile night light that entertains and soothes simultaneously, the COOLNIGHT Kids Night Light Projector with Star Films and Remote is an excellent choice. It offers five-in-one functionality, including three HD films—Stars & Moon, Ocean Animals, and Dinosaurs—and 93 lighting modes with 25 colors, creating vivid ceiling projections. The projector features adjustable brightness, a timer, remote control, and 360° silent rotation, making it perfect for sleep or play. Its durable design, easy USB plug-in setup, and calming, colorful projections make it ideal for nursery or bedroom use, helping kids relax and enjoy bedtime routines with fun and comfort.

Best For: parents seeking a versatile, entertaining, and soothing night light for children aged 3-5 years that enhances bedtime routines with engaging projections and customizable lighting.

Pros:

• 5-in-1 functionality with HD films, multiple lighting modes, and colors for immersive experiences
• Silent 360° rotation and adjustable brightness create calming environments without disturbance
• Easy USB plug-in design with remote control and timer for convenient operation and energy saving

Cons:

• Requires a USB power source, limiting placement options without nearby outlets
• Some children may outgrow the themes or projections quickly as they develop interests
• Limited to use with compatible USB outlets, which may not be ideal for all travel or outdoor settings

Night Lights Plug Into Wall (2 Pack), Color Changing RGB Night Light

These plug-in wall night lights are perfect for parents seeking a simple yet versatile lighting solution for their children’s rooms or common areas. They feature three lighting modes: solid color, warm 3000K light, and a multicolor cycle with eight vibrant colors. With just a single button, you can easily select or switch between modes. The stylish “bubbles” design made of clear acrylic provides a soft, ambient glow that gently illuminates walls, ceilings, and rooms. With a long lifespan of 20,000 hours, these durable lights are perfect for everyday use, helping kids find their way at night while adding colorful, cozy ambiance.

Best For: parents and individuals seeking a versatile, colorful night light that provides gentle illumination and adds cozy ambiance to any room.

Pros:

• Easy to operate with a single button for quick mode switching
• Stylish “bubbles” design made of durable clear acrylic for aesthetic appeal
• Long-lasting with a lifespan of 20,000 hours, ensuring durability and reliable use

Cons:

• Limited to three lighting modes, which may not suit all preferences
• Requires plug-in wall socket, limiting placement options
• The multicolor cycle may not be suitable for those needing a consistent color or brightness level

GE SleepLite Night Lights 2 Pack

The GE SleepLite Night Lights 2 Pack is an excellent choice for parents seeking a safe, reliable way to illuminate their child’s room or hallway. These plug-in lights feature a dusk-to-dawn sensor, turning on automatically at dusk and off at dawn, so there’s no need to remember to switch them on or off. Equipped with energy-efficient LED bulbs, they emit a warm amber glow that provides enough light for navigation without disturbing sleep. Their sleek white finish blends well with any décor, and the compact design leaves outlets free for other devices. Cool-to-the-touch and UL-certified, these night lights are safe, long-lasting, and perfect for creating a cozy, secure environment.

Best For: parents and households seeking safe, automatic night lighting to enhance safety and ambiance in bedrooms, hallways, and nurseries.

Pros:

• Automatically turns on at dusk and off at dawn, providing effortless operation
• Energy-efficient LED bulbs that stay cool and last long without needing replacements
• Compact design and sleek white finish blend seamlessly with various décor styles

Cons:

• Not waterproof, suitable only for indoor use
• Limited brightness of 2 lumens may not be sufficient for larger or highly dark spaces
• Requires wall outlet access, which may block other outlets or electronics

One Fire Galaxy Projector for Kids Room Decor

The One Fire Galaxy Projector stands out as an ideal decor piece for kids’ rooms because it combines vibrant visual effects with soothing sounds, creating a calming environment. Its 4-in-1 design includes a star projector, skylight, Bluetooth speaker, and night light, covering over 250 ft² with 15 colors and 360° light effects. It offers white noise, lullabies, and nature sounds to help kids relax and fall asleep easily. The remote control makes it simple to change colors, adjust volume, or set timers. Whether used for decoration, mood lighting, or bedtime, this projector adds a magical touch to any room.

Best For: parents and caregivers seeking a versatile, soothing, and decorative projection device to enhance kids’ bedrooms and promote relaxation and better sleep.

Pros:

• Combines multiple functions including star projection, lighting, Bluetooth speaker, and white noise for versatile use
• Creates immersive 360° light effects with 15 colors and wide coverage over 250 ft²
• Easy to operate with remote control and adjustable timers, speeds, and brightness

Cons:

• May be more expensive compared to single-function night lights or projectors
• Requires a power source and remote control for full functionality, which could be inconvenient if misplaced
• The brightness and sound volume might not be adjustable to very specific preferences for some users

L LOHAS LED Night Light for Kids

Looking for a night light that combines adorable design with versatile lighting options? The L LOHAS LED Night Light for Kids is perfect. Its charming 3D puppy shape adds warmth and cuteness to any room. It offers RGB and soft white lighting, with three modes: solid colors, soft white, and color cycling. The soft white mode includes brightness dimming, creating a cozy atmosphere. Equipped with smart dusk-to-dawn sensors, it turns on at dusk and off at dawn, helping save energy. Plus, the memory function remembers your preferred color settings. It’s a delightful, practical addition that fosters a peaceful bedtime routine for kids.

Best For: parents seeking an adorable, versatile night light that creates a cozy and peaceful bedtime environment for children of all ages.

Pros:

• Cute 3D puppy design adds warmth and charm to any room decor
• Multiple lighting modes including RGB, soft white, and color cycling for versatile ambiance
• Smart dusk-to-dawn sensor and memory function enhance convenience and energy efficiency

Cons:

• Placement of two night lights close together may affect sensor performance
• Brightness dimming is limited to a 50% reduction in soft white mode
• Manual switch-off disables the sensor temporarily, requiring manual restart to resume automatic operation

THAUSDAS Dimmable Touch Night Light with RGB Colors

Ever wonder how to create a calming, customizable nightlight for your child’s bedroom? The THAUSDAS Dimmable Touch Night Light with RGB Colors is perfect for this. It’s portable, rechargeable, and easy to operate with 360° touch control—just tap to change colors and brightness. With 13 RGB options and over 256 color combinations, you can tailor the mood instantly. It offers three lighting modes and four brightness levels, from bright for reading to dim for sleep. Its flicker-free, eye-friendly LED provides gentle illumination, making it suitable for kids and adults alike. Plus, it includes remote control and a timer, adding extra convenience to bedtime routines.

Best For: parents seeking a versatile, customizable night light for children’s bedrooms, nurseries, or any indoor space requiring gentle, adjustable lighting.

Pros:

• Easy 360° touch control for quick and intuitive color and brightness adjustments
• Multiple lighting modes and over 256 color options for personalized ambiance
• Portable, rechargeable design with remote control and timer functions for added convenience

Cons:

• Limited to 150 lumens, which may not be sufficient for larger or brighter lighting needs
• Requires USB charging, so continuous use without charging may be limited
• Small size might not provide enough illumination for all purposes in bigger rooms

L LOHAS LED Night Lights Plug into Wall (2 Pack)

If you’re searching for a safe and energy-efficient night light for your child’s room or hallway, the L LOHAS LED Night Lights are an excellent choice. These plug-in lights feature automatic on/off with built-in dusk-to-dawn sensors, turning on in low light and off in bright conditions. They emit a soft, warm white glow (3000K) that’s glare-free, making nighttime navigation gentle on eyes. The compact design doesn’t block outlets, and with adjustable brightness levels, you can customize the light to suit your needs. Plus, they consume only 0.6W, helping you save on electricity while keeping your little ones safe and comfortable during bedtime.

Best For: families seeking safe, energy-efficient, and customizable night lighting for bedrooms, hallways, nurseries, and stairways.

Pros:

• Automatic dusk-to-dawn sensors ensure hands-free operation, enhancing convenience.
• Compact design prevents outlet blockage and fits seamlessly into various indoor spaces.
• Adjustable brightness levels allow personalized lighting preferences, promoting comfort and safety.

Cons:

• Not waterproof, limiting outdoor or humid area use.
• Uses E26 bulb base, which may require replacement bulbs if needed.
• Only suitable for indoor environments; unsuitable for outdoor or damp conditions.

L LOHAS LED Night Lights Plug into Wall 2-Pack

The L LOHAS LED Night Lights Plug into Wall 2-Pack is an excellent choice for creating a safe, gentle illumination in your child’s room or hallway. These compact, energy-efficient lights feature a dusk-to-dawn sensor that automatically turns on at night and off during the day, so no manual operation is needed. With a soft white 3000K glow and 40 lumens brightness, they provide enough light to prevent trips without disturbing sleep. Safe for kids, heat-free, and UL-listed, they’re designed for indoor use in bedrooms, bathrooms, hallways, and more. The two-pack ensures broader coverage, offering reliable illumination in multiple spaces.

Best For: households seeking safe, energy-efficient night lighting in bedrooms, hallways, bathrooms, or nurseries without manual operation.

Pros:

• Automatic dusk-to-dawn sensor for hands-free operation
• Soft white 3000K light creates a cozy, non-dazzling atmosphere
• Compact, lightweight design fits easily in various indoor spaces and doesn’t block outlets

Cons:

• Not water-resistant, suitable only for indoor use
• No dimming feature for adjustable brightness
• Limited to 40 lumens, which may be insufficient for large or very dark spaces

L LOHAS LED Night Light for Kids

Looking for a night light that combines safety with charming design? The L LOHAS LED Night Light for Kids is perfect. Its cute, 3D design and multicolor acrylic shade make it both attractive and safe for children’s rooms. It offers three lighting modes—solid colors, soft white, and color cycling—easily accessible with a short press. The nightlight automatically turns on at dusk and off at dawn thanks to its dusk-to-dawn sensor, ensuring hassle-free operation. Easy to plug in, it’s ideal for bedrooms, nurseries, or hallways. With a high customer rating of 4.6 stars, this charming nightlight is a practical and delightful addition to any kid’s space.

Best For: parents seeking a safe, charming, and versatile night light to create a cozy atmosphere in their children’s rooms or nurseries.

Pros:

• Attractive 3D design and multicolor acrylic shade make it visually appealing and safe for kids
• Multiple lighting modes, including color cycling and dimmable white light, for customizable ambiance
• Automatic dusk-to-dawn sensor provides hassle-free, energy-efficient operation

Cons:

• Not waterproof, so it should be kept away from moisture or water exposure
• Requires being plugged into an electrical outlet, limiting placement options
• The sensor’s performance may be affected if placed too close to another light source

INZU Night Lights Plug into Wall with Auto Dusk to Dawn Sensor

INZU Night Lights are ideal for parents seeking a safe, hassle-free way to keep their children’s rooms and other household areas softly illuminated overnight. These plug-in LED lights feature a cute heart shape with a durable ABS build and a cozy pink matte finish. Equipped with advanced light sensing technology, they automatically turn on at dusk and off at dawn, saving energy and eliminating manual operation. Their compact size ensures they won’t block outlets, and their soft warm white glow creates a comforting atmosphere. Water-resistant and drop-resistant, these reliable lights are designed for daily use, making bedtime safer and more peaceful.

Best For: parents and households seeking a safe, energy-efficient, and automatic night lighting solution for children’s rooms, nurseries, bathrooms, or hallways.

Pros:

• Automatically turns on at dusk and off at dawn, providing hands-free convenience and energy savings
• Compact, adorable heart design that does not block outlets and blends seamlessly into household decor
• Durable, water-resistant, and drop-resistant construction ensures reliable, long-term use

Cons:

• Limited to indoor use only, not suitable for outdoor environments
• May produce a soft glow that is insufficient for tasks requiring brighter illumination
• No adjustable brightness or color settings, offering only a warm white light

Hatch Rest Baby Sound Machine with Night Light

If you’re seeking a versatile night light that helps establish healthy sleep routines, the Hatch Rest Baby Sound Machine with Night Light is an excellent choice. It combines a sound machine, customizable dimmable night light, and sleep trainer all in one compact device. You can set soothing sounds, gentle lights, and bedtime stories to help your little one wind down and stay asleep through the night. The Wi-Fi connection allows remote control via app, so you can adjust settings anytime, anywhere. Its features support consistent routines, making bedtime smoother for kids and stress-free for parents. Plus, it’s portable and easy to use, fitting seamlessly into any nursery.

Best For: parents and caregivers looking for an all-in-one, customizable night light and sleep aid to establish healthy bedtime routines for their children.

Pros:

• Combines sound machine, night light, and sleep trainer in a compact, portable device
• Wi-Fi enabled for remote control and scheduling via the Hatch app
• Supports personalized routines with soothing sounds, stories, and adjustable light settings

Cons:

• Requires Wi-Fi connection for full functionality, which may be limiting in areas with poor internet
• Higher price point compared to basic night lights or sound machines
• Subscription needed for access to additional music, stories, and features

Factors to Consider When Choosing Night Lights for Kids Room

When choosing a night light for your child’s room, I think about safety certifications to guarantee it’s reliable. I also consider the brightness, color options, and modes to find something soothing without being too harsh. Finally, I look at the power source, design, and size to make sure it fits well and is convenient to use.

Safety Certifications and Standards

Choosing a safe night light for your child’s room starts with checking for proper safety certifications. Look for products tested and certified by recognized organizations like UL, ETL, or CSA, which confirm that the night light meets strict safety standards. It’s also essential to verify that the night light uses low voltage or safe, certified LED components to reduce electrical hazards. Ascertain that the materials are non-toxic and child-safe, such as BPA-free plastics. Features like auto shut-off, overheating protection, and stable bases are additional safety measures to contemplate, minimizing potential accidents. By prioritizing these certifications and standards, you can confidently select a night light that’s both magical and safe, giving you peace of mind as your child enjoys a cozy, secure bedtime environment.

Light Brightness Levels

Selecting a night light with the right brightness is key to creating a comfortable and safe sleep environment for your child. Different lights offer brightness levels from as low as 4 lumens to over 60 lumens, impacting visibility and ambiance. Adjustable brightness settings are ideal, allowing you to customize the light intensity based on your child’s preference or the room’s activity. Soft white or warm-colored lights tend to be dimmer, providing gentle illumination perfect for sleep, while brighter settings can help with nighttime tasks. It’s important to choose a brightness level that prevents glare or disturbance—typically below 10-20 lumens—for your child’s comfort. Some night lights come with dimming controls or multiple modes, making it easy to switch between cozy and more illuminated settings as needed.

Color Options and Modes

Color options and modes play a crucial role in creating a comfortable and engaging sleep environment for kids. Many night lights offer a variety of colors like red, green, blue, pink, and yellow, allowing customization to match room decor or personal preferences. Modes such as solid colors, color-changing, and soft white help set different moods and support relaxation. Adjustable color temperature and brightness give further control, making it easy to tailor the light to specific activities or times of night. Some models include cycle or rainbow modes that shift through multiple colors for a dynamic effect, adding a touch of magic. With remote or touch controls, switching between modes and colors is convenient, making bedtime both fun and personalized for kids.

Power Source Flexibility

When considering the power source for a night light, it’s important to think about how and where you’ll use it. Battery-powered options are portable and great for travel or rooms without accessible outlets, giving you flexibility. Plug-in night lights provide continuous illumination without worrying about replacing batteries, making them low maintenance. Some models feature dual power options, like rechargeable batteries combined with AC outlets, offering more versatility for different situations. It’s also vital to check if the night light’s power source matches your household voltage and outlet type to guarantee safe use. Additionally, USB rechargeable night lights add convenience—they can be powered via computers, power banks, or wall adapters, giving you multiple charging options and making setup easier.

Design and Size Suitability

Choosing the right size and design for a night light is essential to make certain it fits well in your child’s room without causing any hazards or inconvenience. A compact design, around 2 to 4 inches in height and width, usually works best for small spaces and keeps the room feeling cozy. It shouldn’t block outlets or be large enough to trip over, especially in tight areas. Decorative larger lights can add charm but should still be lightweight and unobtrusive. Ease of handling is also key—kids should be able to operate or carry the light comfortably. Matching the size to the room’s scale creates a balanced, inviting environment that promotes restful sleep. When in doubt, opt for a design that’s simple, safe, and appropriately sized for your child’s space.

Additional Features and Functions

Adding extra features to a night light can considerably enhance its usefulness and create a more comforting environment for your child. Remote controls and timers offer convenience, allowing parents to adjust settings easily and turn the light off automatically. Adjustable brightness helps customize the ambiance, making the room cozy without being too bright. Some night lights include projection functions, like starry skies or themed images, transforming bedtime into an immersive experience. Built-in sensors, such as dusk-to-dawn or motion detectors, automatically turn lights on or off, saving energy and ensuring consistent lighting. Multi-mode options, including color-changing or static colors, provide versatile ambiance choices. Sound features like white noise or lullabies can help soothe children to sleep, making bedtime more relaxing and enjoyable.

Frequently Asked Questions

Are Night Lights Safe for All Ages of Children?

Yes, night lights are generally safe for all ages of children when chosen carefully. I always look for those with cool, soft lighting that won’t over-stimulate or cause discomfort. Make sure the light is low wattage, uses LED bulbs, and is made from non-toxic, child-safe materials. It’s also wise to keep cords out of reach and avoid overly bright or flashing lights to guarantee a safe, calming environment for your little one.

Do Color-Changing Night Lights Require Batteries or AC Power?

Color-changing night lights usually need batteries or an AC power source, depending on the design. I’ve found that battery-powered models are portable and easy to place anywhere, while plugged-in ones offer continuous illumination. Think of it as choosing between independence and consistent comfort; both options serve a purpose. So, whether you prefer the freedom of batteries or the stability of an AC connection, there’s a perfect fit for your child’s room.

Can Night Lights Be Programmed to Turn On/Off Automatically?

Yes, night lights can be programmed to turn on and off automatically. I love using models with built-in timers or smart features that connect to my home Wi-Fi. These allow me to set schedules so the light turns on at dusk and off at dawn or based on specific times. It’s so convenient and helps create a seamless, magical bedtime routine without me having to remember to switch lights on or off.

Are There Night Lights Suitable for Very Small Children or Infants?

Yes, there are night lights specially designed for very small children and infants. I recommend choosing soft, gentle lights with dimmable features or night lights that emit a warm, soothing glow. Look for options made from safe, non-toxic materials and with a low wattage to prevent overheating. These lights provide enough comfort without disturbing sleep, making them perfect for creating a calming bedtime environment for your little one.

How Energy-Efficient Are the Latest Night Light Models?

Think of the newest night lights as tiny guardians conserving energy while illuminating dreams. I find that many modern models are incredibly energy-efficient, often using LED bulbs that sip power slowly, saving your electricity bill and the environment. Some even have automatic shut-off timers or dimming features. Overall, these lights are designed to be gentle on your energy use, making bedtime both magical and eco-friendly.

Conclusion

As a parent, I’ve learned that the right night light can turn bedtime from a battle into a peaceful ritual. Just like a lighthouse guides ships safely to shore, the perfect night light creates a calming glow that eases kids into sleep. Whether it’s a star projector or a color-changing LED, these lights can transform a dark room into a magical space—making bedtime feel like a gentle voyage rather than a stormy night.