Every kid who has ever pointed at the moon through a car window wants a room that feels like it belongs up there with it. A space themed bedroom turns that wonder into something you can actually decorate around, from a single glow star sticker to a full navy accent wall. You don’t need a big budget or a big room to pull this off. You just need a few smart choices in the right spots, and this list walks you through fifteen of them.
Glow Star Ceiling Above the Bed
Nothing sells a space themed bedroom faster than a ceiling that lights up after the lamp goes off. Stick a pack of 200 to 300 glow-in-the-dark star decals in a loose cluster above the headboard, leaving more gaps near the edges so it fades naturally into the plain ceiling. Pick the kind with a soft yellow-green glow instead of bright green, since it reads calmer at bedtime. Charge them under a bedside lamp for ten minutes before lights out and they’ll hold their glow for hours.
Navy Accent Wall With Gold Constellations
Paint one wall in a deep navy like Behr’s Naval or Sherwin-Williams Naval SW 6244, then add peel-and-stick gold constellation decals in a scattered pattern rather than a straight grid. Keep the other three walls a soft off-white so the navy wall stays the clear focal point. This single wall does most of the heavy lifting in a space themed bedroom without needing to touch a single other surface.
Astronaut Decal Above the Headboard
A single large astronaut wall decal, around 30 inches tall, placed centered above the headboard gives the room one clear hero image instead of a cluttered mix of small posters. White or silver suits works best against a navy or charcoal wall. If your kid’s room leans toward pink and playful rather than deep and moody, the astronaut theme still works well next to lighter palettes, similar to the softer tones in these black and pink toddler girl bedroom ideas.
Rocket Ship Bunk Bed Corner
If two kids share the room, paint the end panel of a bunk bed frame with a rocket ship silhouette in matte red or white, then add a round porthole cutout mirror on the side panel for a playful detail. A bunk bed already saves floor space, and dressing it up this way turns a plain frame into the centerpiece of the whole space themed bedroom. For more layout ideas that work in shared kid rooms, these bunk bed ideas cover a wide range of styles.
Moon Phase String Lights
A string of eight small moon phase lanterns, from new moon to full moon, draped along one wall or above a headboard adds soft light without a single sharp edge. Warm white bulbs work far better than cool white here, since cool light fights the cozy feel a space themed bedroom needs at night. Hang the string loosely in a shallow U shape rather than pulling it taut.
Galaxy Print Bedding in Deep Purple
Swap the everyday duvet for a galaxy print set in deep purple and midnight blue, then keep the pillowcases plain white to stop the pattern from overwhelming a smaller bed. This one swap changes the entire feel of the room in an afternoon. If you’d rather build the palette around cooler, calmer tones instead of purple, this blue and green bedroom ideas guide shows how those combinations play out.
Planet Mobile Over the Reading Nook
Hang a hand-painted wood planet mobile, eight small spheres on fishing line, above a floor cushion or a small armchair in the corner. Space the planets 4 to 6 inches apart so they turn freely without tangling. This gives the room a second focal point beyond the bed, which helps a space themed bedroom feel finished rather than like the theme only lives on one wall.
Blackout Curtains With Star Cutouts
Charcoal blackout curtains with small die-cut star holes let pinpoints of light through when the sun is out and glow like tiny stars when a nightlight sits behind them after dark. Hang them on a black rod mounted a few inches above the window frame so they read taller and more dramatic. Few details work double duty in a space themed bedroom quite like this one.
Cratered Moon Lamp on the Nightstand
A 3D-printed moon lamp, roughly 6 inches wide, gives off a warm amber glow that mimics real moonlight far better than a standard lamp shade. Set it on the nightstand next to a small stack of books instead of centering it, so the surface still has room to breathe. This idea travels well too, and works just as nicely in a small guest bedroom if you want to bring the theme into a room that pulls double duty.
NASA Poster Gallery Wall
Frame four or five real NASA archive prints, think the Earthrise photo or the Pillars of Creation, in matching thin black frames and hang them in a tidy 2×2 or 2×3 grid with 2 inches between each frame. Real photography grounds a space themed bedroom in something true rather than only cartoon graphics, which tends to age better as a kid grows older.
Silver Star Throw Pillows
Two or three metallic silver star-shaped throw pillows, mixed in with one plain navy lumbar pillow, add texture without adding clutter. Lean them against each other at slightly different angles instead of lining them up straight. For more ways to style pillows so they photograph well and hold their shape, this guide on how to arrange bedroom pillows breaks down layering that works in any themed room.
Telescope Corner by the Window
A tabletop telescope on a small round side table near the window turns an empty corner into a spot with a purpose. Keep the table under 20 inches wide so it doesn’t crowd the walking path. Even a toy telescope works here since the point is the display, not the optics, and it gives a space themed bedroom a lived-in, curious feel instead of a purely decorative one.
Rocket and Planet Storage Bins
Canvas storage bins printed with rockets and planets, sized around 13×13 inches, slide neatly onto closet shelves or a low cube shelf and keep toys out of sight without breaking the theme. Labeling each bin by category rather than by color keeps the system easy for a kid to actually use. For more ways to squeeze storage into a smaller footprint, these small bedroom storage ideas pair well with a themed room like this one.
Glow Planet Decals on the Ceiling Fan
Small glow planet decals stuck to the blades of a ceiling fan, one planet per blade, catch light during the day and glow softly at night once the fan sits still. It’s a detail most guests won’t notice right away, which makes it feel like a secret the kid gets to reveal. Little touches like this are what push a space themed bedroom from decorated to genuinely thought through.
Cosmic Rug in Deep Plum
A round rug in deep plum or charcoal, printed with a faint swirled nebula pattern, anchors the room from the floor up and hides scuffs far better than a plain pale rug. Size it so it extends at least 18 inches past the sides of the bed for the coziest underfoot feel.
If your kid ends up wanting a softer, moodier palette as they grow, these pastel goth bedroom ideas show how a similar deep, dreamy color story can grow up with them.
Quick Answer
A space themed bedroom works best when you pick two or three ideas to lead with, like a glow star ceiling and a navy accent wall, then layer in smaller details like pillows, a moon lamp, or storage bins over time. You don’t need every idea on this list in one room.
How much does a space themed bedroom cost to put together?
A basic version with star decals, a moon lamp, and new bedding runs somewhere between $80 and $150. A full room with an accent wall, framed prints, and a themed rug can reach $300 to $500 depending on furniture
What age works best for a space themed bedroom?
This theme suits kids roughly age 4 through early teens well, since real NASA photography and constellation details grow with a child far better than cartoon rocket graphics alone.
Do glow-in-the-dark stars actually work well long term?
Good quality decals hold their glow for three to five years before they start to fade, and most peel off cleanly without damaging paint if you use the removable adhesive kind.
Can I do this theme without painting a wall?
Yes. Bedding, a moon lamp, string lights, and a few framed prints carry the whole look on their own if painting isn’t an option in a rental.
Lights off, glow stars on, and suddenly that ceiling looks like the best seat in the house.