Outer space decor can turn a kid’s bedroom into a playful little galaxy without covering every surface in planets and stars. Peel-and-stick wallpaper, space bedding, wall prints, a moon lamp, fairy lights, a themed rug, or even a cloud ceiling can set the mood, while simple colors and a few removable accents keep the room comfortable and easy to update.
Galaxy Pattern Wall Wallpaper That Peels and Sticks

Its immediate effect is immersion. The galaxy wallpaper creates that feeling as soon as it covers the wall.
The star-filled look sets the room’s tone and creates a clear space feel. Since the wallpaper already does so much, only a few accents are needed.
Simple bedding and space-themed accents keep the rest of the room from competing with the wallpaper. Let the wallpaper have the most prominence on the wall.
Space Toys and Throw Pillows

Space-themed throw pillows add playfulness, while space toys bring personalization to the room. Together, they make the theme feel connected to the child who uses the space.
The throw pillows soften the bed’s appearance and can generate child excitement. Space toys create that same sense of excitement in a more hands-on way.
Small changes can update the theme without requiring a full room makeover. Add space throw pillows and toys to bring the theme into the room in a simpler way.
Space Wall Prints and LED Moon Lamp

This is an adorable idea for a space-themed room, with wall prints and an LED moon lamp working together.
Near the space wall prints, the LED moon lamp becomes a focal point in the bedroom. Its soft glow produces coziness and helps the room feel more comfortable.
Use the wall prints to style the wall, and place the LED moon lamp nearby. The prints add visual interest without making the wall look visually busy.
Solar System Wall Art

A few pieces of solar system wall art can change the appearance of the space. It does not require many pieces to make that change.
Layered wallpaper gives the wall a clear surface detail, while prints and matching bedding carry the same idea through the room. Together, the wallpaper, prints, and bedding create coordination and a finished look.
Repeat blue tones and galaxy tones around the room so the different pieces relate to one another. Repeated tones support a polished style.
Solar System Mobile and Soft Fairy Lights

A solar system mobile adds movement, while soft fairy lights add softness around it. Used together, they create a dreamy glow.
Deep blue tones suit the solar system mobile and soft fairy lights. The same pairing also works with galaxy decor.
For night coziness, use the solar system mobile and soft fairy lights together. They support nighttime comfort through movement, softness, and a dreamy glow.
Space Rug

On the floor, a space rug adds fun to the room while functioning as a single theme piece. It brings the space idea into an otherwise practical part of the room.
The rug adds softness underfoot and connects the room’s theme to the floor.
In children’s rooms, a space rug adds personality without taking up storage space. It is a way to bring in the theme while keeping the floor useful.
Space Themed Room Color Scheme

Start by choosing the room colors. The color choice affects how the space-themed room comes together.
Soft blue, navy, white, and grey create a calm atmosphere while suggesting a sky-like feel. Together, these colors support a playful style for children.
Wallpaper and bedding can serve as the primary theme elements. Use a small palette to keep the theme cohesive, then let either the wallpaper or the bedding lead the decor.
Decor Ideas for a DIY Space

Add DIY touches to the space-themed bedroom to make the room feel magical.
DIY decor, from handmade stars and painted planets to wall accents, adds personality and makes a room feel unique.
DIY decor supports a budget-friendly look while retaining a creative and thoughtful style.
LED Cloud Ceiling

Overhead, a cloud ceiling uses soft LED lighting to create visual impact.
The cloud ceiling draws the eye upward and makes the room immersive, so the experience almost resembles being in another world.
Simple, cozy decor works well with the cloud ceiling, keeping the rest of the room focused on that feature.
These bedroom ideas bring an outer-space theme into the room.