20 Space-Themed Girl Bedroom Designs That Are Out of This World

Designing a bedroom is more than just decorating a space—it’s about creating an environment that sparks imagination, inspires dreams, and provides comfort. For girls who adore the mysteries of the cosmos, a space-themed bedroom is a perfect choice. From shimmering stars and glowing moons to galaxies swirling across the walls, a celestial design creates a magical retreat that feels both stylish and fun.

A space-themed room doesn’t have to be complicated or expensive. With creative touches like galaxy-inspired wall art, glow-in-the-dark stars, or astronaut-inspired décor, you can transform a regular bedroom into an otherworldly escape. This design trend blends modern aesthetics with whimsical charm, making it suitable for girls of all ages—from toddlers who love starry night-lights to teens who dream of exploring the universe.

In this article, we’ll explore 20 space-themed bedroom ideas for girls that range from bold statement décor to subtle celestial touches. Each idea includes inspiration, practical styling tips, and ways to customize it for different ages and personalities. Whether you want to create a dreamy atmosphere for relaxation or an adventurous space for play, these ideas will guide you in designing a bedroom that is truly out of this world.

1. Galaxy-Inspired Wall Murals

Few things make a stronger impact than a galaxy wall mural. Covering one or more walls with a hand-painted or peel-and-stick mural instantly transforms the space into a cosmic wonderland. Rich shades of midnight blue, purple, magenta, and silver mimic the swirling beauty of outer space.

If painting feels overwhelming, removable wallpaper is a great option. It’s renter-friendly, easy to install, and can be switched out as your child’s tastes evolve. A galaxy mural can act as the focal point of the room, setting the stage for other décor choices. Pair it with neutral furniture to balance the boldness or go all out with matching cosmic bedding and rugs.

2. Glow-in-the-Dark Stars and Planets

Every space-themed bedroom benefits from a starry ceiling. Glow-in-the-dark stickers are inexpensive and easy to apply, instantly turning bedtime into a magical experience. By day, they blend into the ceiling; by night, they transform the room into a twinkling night sky.

You can arrange them randomly for a dreamy effect or create real constellations for an educational twist. Some sets even include glowing planets, moons, and shooting stars, making the design more dynamic.

3. Moon-Shaped Wall Lights

Lighting sets the mood in any room, and for a cosmic theme, moon-shaped wall lights or lamps are a perfect choice. A crescent moon night-light emits a soft, soothing glow that makes bedtime cozy and calm. For a dramatic look, opt for a large, realistic 3D moon lamp that mimics the moon’s surface when lit.

These lights can replace traditional bedside lamps or act as accent lighting. Pair them with starry fairy lights for a layered glow that feels enchanting and warm.

4. Constellation Bedding Sets

Bedding is an easy way to set the tone of a themed bedroom. Constellation bedding featuring navy blue, silver, and white designs brings the night sky right into the bed. Choose prints with zodiac constellations, planets, or twinkling stars for variety.

For a more complete look, match constellation bedding with galaxy pillows and blankets. It’s a simple change that creates big visual impact.

5. Hanging Planets Mobile

A solar system mobile adds movement and whimsy to the room. Hung above the bed or study area, it introduces a playful, educational element.

Pair this with a creative corner setup—like these living room empty corner ideas—to make even unused areas feel purposeful and fun.

6. Metallic Accents

Stars shimmer in the sky, and you can replicate that sparkle with metallic accents. Add silver, gold, or rose-gold finishes in lamps, mirrors, or side tables. These reflective pieces mimic the twinkle of stars and balance the darker tones of a galaxy-themed room.

7. Rocket Ship Bookshelf

A rocket ship-shaped bookshelf provides storage while acting as a playful statement piece. Younger kids will love its whimsical design, while older girls will appreciate its uniqueness.

8. Starry Curtains

Blackout curtains with star prints not only look magical but also block out harsh sunlight for better sleep. Pair sheer curtains with blackout layers to create a dreamy, versatile setup.

9. Neon Star Signs

Neon lights shaped like stars or planets add a modern and futuristic glow. Place them above the bed or in a study nook for both style and function.

10. Astronaut Plush Toys & Décor

Plush astronauts, decals, or figurines add personality to the room. They’re a simple way to make the space more interactive without overwhelming the design.

11. Projector Night Light

A galaxy projector fills ceilings and walls with swirling galaxies, stars, and auroras. It’s both practical and enchanting, creating a bedtime experience that feels out of this world.

12. Floating Shelves for Space Décor

Floating shelves styled with telescopes, decorative orbs, or books double as storage and décor. You can even paint them metallic for extra shimmer.

13. Star-Shaped Rugs

A star-patterned rug defines the space and adds warmth underfoot. Choose bold navy rugs for drama or subtle gray tones for a softer look.

14. DIY Constellation Art

Personal touches make rooms special. Try painting constellations on canvas or creating LED constellation patterns.

This DIY touch complements natural creative elements, much like a backyard garden wall painting that transforms outdoor spaces into art.

15. Metallic Wallpaper

Metallic wallpaper is bold yet elegant. Use it as an accent wall behind the bed to add cosmic glamour.

16. Space-Themed Desk Area

Turn a study corner into a celestial workspace. Add astronomy posters, galaxy-themed stationery, or star-shaped lamps for a balance of creativity and focus.

17. Hanging Fairy Lights

Fairy lights strung across the ceiling resemble a glowing starry sky. Pair them with a canopy for a cozy, magical tent-like effect.

18. Planet-Shaped Pillows

Add playfulness with pillows shaped like Saturn, the moon, or stars. They bring comfort while staying true to the theme.

19. Star Canopy Bed

Sheer fabric draped with tiny star lights over a bed creates a dreamy canopy perfect for both little girls and teens.

20. Mix Pink with Space Tones

Pair blush pinks, purples, and silvers with navy and black for a softer, feminine take on cosmic style. This blend creates a dreamy yet elegant balance.

Conclusion: space-themed girl bedroom ideas

Creating a space-themed bedroom for girls is about more than décor—it’s about inspiring imagination and wonder. From galaxy murals to neon stars, each idea adds magic while keeping the room functional and cozy.

For dining areas, you can extend the same creative approach with ideas like these boho dining room décor ideas, proving that themed design can be stylish and versatile across your whole home.

With these 20 space-themed ideas, your daughter’s room can become a sanctuary that inspires dreams and makes her feel like she’s sleeping under the stars.