Top 15 SpongeBob-Themed Room Design Ideas You’ll Want to Copy

Ever since I was little, SpongeBob was always one of my favorite characters. So it’s no surprise that seeing room designs inspired by Bikini Bottom got me so excited. In this article I want to share with you a selection of children’s rooms that I thought were amazing because of how they capture the fun, colorful and unique essence of SpongeBob’s world. If you have children, nieces, nephews, or you are simply a fan like me, these ideas can serve as inspiration to transform an ordinary room into a space full of imagination and joy.

1. Room design inspired by SpongeBob

I’ve always had a soft spot for SpongeBob SquarePants, so seeing this design instantly brought back that same childhood excitement. The first thing that grabs your attention is the huge mural on the main wall — SpongeBob’s big smile, painted in vibrant yellow and ocean blue, makes the whole space radiate joy. It’s the kind of wall art that feels like a portal straight into Bikini Bottom.

The bed is just as magical, dressed in themed sheets featuring SpongeBob, Patrick, and even a few jellyfish for good measure. Scattered around the room are plush toys — from a cuddly SpongeBob himself to a sleepy-looking Patrick — creating a playful, welcoming vibe. My favorite detail? The pineapple-shaped lamp. It’s a subtle nod to SpongeBob’s iconic home and it casts a warm, golden glow that makes the room feel even cozier at night.

If you want to recreate this space, start with a large wall decal or mural. It sets the tone instantly, and you can build the rest of the decor around it. Then, layer in themed bedding, plush toys, and a statement lamp. Keep the walls and flooring simple so the bright SpongeBob elements really pop.

Designer’s Tip

If you’re looking for similar items, you can find plenty on Amazon:

• SpongeBob wall decal – easy to install and instantly transforms the room.
• SpongeBob bedding set – playful and comfortable for kids.
• Pineapple lamp – the perfect touch for a themed room.

The overall feeling of this setup is cheerful, fun, and surprisingly cozy. It’s not just a bedroom — it’s an immersive experience for any SpongeBob fan, young or young at heart.

2. Room design inspired by Squidward Tentacles

I designed this space with Squidward’s fans in mind — that grumpy yet undeniably stylish character we all secretly appreciate. The cool tones of blue and aqua green dominate the room, giving it that sophisticated, almost artistic air that perfectly represents him.

The main wall features a mural of Squidward playing the clarinet, right next to his iconic Moai-style house. Small marine details around the mural — like coral accents and seashell shapes — add texture and depth without overwhelming the design. The bed keeps things subtle with squid-inspired patterns and tasteful vintage art, making the space feel grown-up yet still tied to the theme.

One of my favorite touches is the mini art nook. I included a small easel, perfect for painting or drawing, so kids can express their creativity just like Squidward would (minus the grumpiness). If you want to recreate this idea, you can find children’s art easel sets that fit perfectly in small corners and instantly encourage artistic play.

Keep the bedding and furniture in neutral or soft tones so the mural and decor remain the focus. A simple blue bedding set works perfectly, and you can complete the look with a few ocean-themed throw pillows for extra texture and comfort.

Designer’s Tip

This setup blends creativity, style, and just the right touch of marine nostalgia — a calm yet inspiring space for any Squidward enthusiast.

3. Arenita Cheeks theme room

This children’s room design takes inspiration from Arenita Cheeks, the spunky squirrel from SpongeBob SquarePants, capturing her adventurous Texan spirit. The space radiates a warm and inviting atmosphere, anchored by natural wood furniture and a cozy beige and brown color palette that evokes a classic Texas vibe.

One of the standout features is the small science nook, stocked with books and tools designed to spark curiosity and encourage learning. It’s a wonderful way to nurture a child’s natural inquisitiveness right at home. Bright, welcoming lighting fills the room, making it feel open, organized, and full of personality — a perfect setting for imaginative play and exploration.

To recreate this authentic Texan style, incorporating natural wood nightstands and coffee-colored throw pillows adds both warmth and style. A small study desk fits perfectly in the science nook area, making it functional and inviting for focused activities.

Who is this setup perfect for?

This room beautifully balances comfort, learning, and imagination, making it a favorite for any little explorer with a heart for adventure.

4. Mr. Krabs room design

This children’s room takes inspiration from Mr. Krabs, the money-loving character from SpongeBob SquarePants, bringing a vibrant, nautical, and pirate-inspired theme to life. The combination of bright red and deep navy blue tones instantly fills the space with energy, making it a joy for kids who thrive in colorful environments.

A large mural of Mr. Krabs, grinning with delight as ocean waves surround him, becomes the focal point of the room — a scene that captures both his adventurous side and his obsession with treasure. To complement this, a wooden treasure chest serves as both a playful decoration and functional storage for toys or books.

What I especially loved was the gold table clock — it adds a surprising touch of elegance that contrasts beautifully with the playful pirate theme. The bedding, featuring fun crab patterns, ties the whole design together with charm and personality.

Adding a few nautical wall accents could elevate the pirate vibe even further, making the room feel like a cabin aboard a ship.

This room is perfect for kids who:

Overall, this is a lively, creative, and adventurous design that captures the essence of Mr. Krabs while keeping the space functional and full of joy.

5. Patricio Star inspired kids’ room

This nursery, inspired by Patrick Star, bursts with bright pink and fresh green tones that instantly create a cheerful and playful atmosphere. The bedding features fun starfish motifs, perfectly complementing a large mural of Patrick with his iconic smile set against a lively ocean backdrop.

The furniture keeps a casual and colorful style, with playful shapes and textures that invite kids to imagine and explore. I can picture how a Patrick Star plush or figure would look adorable on the bed, adding an extra dose of personality. A pink star-patterned quilt brings warmth and comfort, while a round green cushion mirrors Patrick’s shorts in a subtle but fun way.

To complete the theme, some decorative starfish wall accents can be placed above the bed or around the mural, giving the space a playful under-the-sea touch.

This room is perfect for:

Overall, it’s a joyful, vibrant, and imaginative design that captures Patrick’s fun-loving personality in every detail.

6. Dreamy Gary room design

This dreamy room, inspired by Gary the Snail, SpongeBob’s beloved mascot, feels like stepping into a magical underwater fairytale. The palette of pastel lavender, mint green, and soft pink instantly creates a calm and relaxing atmosphere. On the main wall, a mural of Gary gliding through jellyfish fields under a starry sky becomes the heart of the room.

The lighting is soft yet enchanting, with bioluminescent-style accents that enhance the whimsical vibe. I imagine how a Gary the Snail plush could add a cozy and personal touch on the bed. The oddly shaped furniture feels straight out of Bikini Bottom, while floating jellyfish lamps cast an ethereal glow. A starry night projector can bring the ceiling to life, and a large round purple cushion adds comfort while matching the dreamy tones.

Combine soft ambient lighting with a projector to create an ever-changing, magical environment that sparks imagination while keeping the room soothing for rest.

Designer’s Tip

7. Larry the lobster room design

This Larry the Lobster-inspired children’s room bursts with vibrant energy and a sporty vibe, perfect for little ones full of movement and enthusiasm. The bold red and blue tones instantly make the space pop, while the walls showcase murals of Larry lifting weights, radiating strength and fun.

The bedding ties into the theme with dumbbell and ocean wave motifs, creating a playful nod to Larry’s athletic lifestyle. To encourage activity, there’s a dedicated workout corner equipped with fun exercise gear. I can totally picture adding a kids’ foam dumbbell set for safe play, a mini trampoline for endless energy bursts, and a blue exercise mat to match the theme and keep activities comfortable.

Keep the workout area open and clutter-free so kids have plenty of space to move around safely while still feeling inspired by the décor.

Designer’s Tip

8. Calm and cozy Mrs. Puff room design

This Mrs. Puff-inspired children’s room is all about creating a calm, educational, and subtly nautical atmosphere that reflects her role as SpongeBob’s patient boating school teacher. The walls are painted in soft light blue and cream tones, evoking the serenity of the ocean and the gentle movement of the waves.

To highlight her passion for sailing, I incorporated nautical details like rudders and life jackets arranged tastefully on the walls, giving the room both a thematic charm and an adventurous feel. I imagine adding a decorative ship wheel above the bed as a striking centerpiece, along with a set of life ring wall décor for a touch of authenticity.

The furniture follows a simple and functional style — a cream-colored desk for studying, a light wood bookshelf to organize storybooks and learning materials, and a cozy reading nook with a nautical-themed throw blanket to make reading time extra inviting. Soft, warm lighting enhances the atmosphere, making it a space that feels safe, organized, and ready for discovery.

The overall mood is one of peaceful focus, where children can relax, study, and imagine themselves learning how to sail the seas — just like in Mrs. Puff’s boating school, but without the chaos SpongeBob usually brings.

9. Plankton’s secret lab bedroom

This Plankton-inspired children’s room is a fusion of science, creativity, and a little bit of mischief — just like the tiny villain from SpongeBob. I chose dark, sophisticated tones like deep green, charcoal, and touches of neon to give the space that technological lab vibe Plankton is known for.

The main wall features a playful mural of Plankton, complete with algae patterns and circuit board details, making the room feel like part of his high-tech laboratory. To bring this concept to life, I included a glowing LED wall strip that frames the mural, adding a futuristic glow.

For the furniture, I leaned toward modern, clean-lined pieces — a black metal desk, a sleek ergonomic chair, and storage units with labeled drawers for “experiments.” To encourage hands-on creativity, a dedicated experiment corner features a kids’ science kit and a tabletop microscope so children can explore the microscopic world just like Plankton would (minus the evil plans).

Soft, indirect lighting keeps the darker colors from feeling heavy, creating a cozy yet brain-stimulating environment. This is the kind of room where kids can dream up big inventions or dive deep into creative projects while feeling surrounded by inspiration.

Adding a small corkboard or magnetic wall panel can make it easy for kids to pin up drawings, ideas, or “scientific notes” — a great way to keep creativity organized and visible.

Designer’s Tip

10. A playful Krusty Krab retreat for kids

I absolutely love how this Krusty Krab-inspired room manages to bring Bikini Bottom’s most famous diner straight into a kid’s bedroom. The vibrant red, crisp white, and warm brown palette instantly recreates that cozy yet lively nautical atmosphere that makes the Krusty Krab so iconic.

The focal point is a large, detailed mural of the Krusty Krab, complete with wooden beams, porthole windows, and even a cheeky “Order Here” sign. To add a playful twist, I included a plush hamburger pillow that looks straight out of the grill — perfect for lounging or playtime.

The furniture echoes a diner setup, with rounded chairs, a small table for “pretend orders”, and themed wall art. On the shelves, I added SpongeBob and Mr. Krabs figurines to make the space feel even more authentic. For extra fun, a cash register toy encourages imaginative play, letting kids pretend they’re flipping Krabby Patties or ringing up customers.

To tie it all together, a cozy corner features striped cushions and nautical rope accents, making it a space where kids can both play and relax. The overall mood is fun, inviting, and full of personality, just like the diner that inspired it.

11. SpongeBob’s pineapple paradise

I love how this SpongeBob SquarePants-inspired room captures all the cheerful and vibrant energy of the show. The bright yellow and refreshing blue color palette instantly transports you to the heart of Bikini Bottom, creating a space that feels lively yet cozy.

The focal point is a large, colorful mural featuring SpongeBob’s iconic pineapple house, his beaming smile, and friends like Patrick and Squidward, making the walls feel alive. The bed is dressed with SpongeBob-themed bedding and accented by soft SpongeBob pillows, which add a playful and comforting touch.

Small details like themed curtains, starfish wall decals, and a SpongeBob night light help complete the underwater fantasy while keeping the space functional. The overall mood is joyful, imaginative, and perfect for kids who love fun adventures.

Use bright but soft LED lighting to highlight the mural without overwhelming the eyes — it enhances the artwork and keeps the room feeling fresh and welcoming.

Designer’s Tip

12. Ghost ship pirate room design

I love how this Flying Dutchman-inspired nursery captures the perfect balance between mystery and fun. The ghostly green and deep navy blue tones give the room a slightly spooky, adventurous vibe — just enough to spark curiosity without making it intimidating for kids.

The star of the space is a large wall mural showing the Flying Dutchman’s ghost ship sailing through thick fog, surrounded by chains, pirate flags, and hints of glowing mist that make the whole scene feel alive. To complement the theme, I’ve added pirate ship wall decals, a treasure chest toy box for storage, and glow-in-the-dark star stickers to make the ceiling feel like the open night sky.

Every corner reflects the spirit of high-seas adventure, from small nautical accessories to cozy pirate-themed bedding that ties the look together. It’s a magical, slightly eerie space that invites imagination and storytelling.

Use a dimmable green LED light or a projector to create a glowing fog effect at night — it transforms the room into a real ghost ship without being too bright for bedtime.

Designer’s Tip

13. Bikini Bottom inspired room design

For this design, I wanted to bring all the charm of Bikini Bottom directly into the room. I used bright ocean-inspired colors — from turquoise to vibrant coral tones — to make the space feel fresh, cheerful, and full of energy. The highlight is a large wall mural depicting the seabed, with coral, playful bubbles, and colorful fish that almost seem to swim out of the wall.

The bedding is decorated with shells and starfish motifs, which I complemented with starfish wall decorations and a cozy ocean-themed comforter set. The furniture, shaped like gentle ocean waves, adds an extra touch of whimsy, while coral-shaped decorative lamps bring a warm glow that makes the room even more inviting.

This space isn’t just visually stunning — it feels like a playful underwater adventure, perfect for sparking creativity and imagination while keeping a cozy, comfortable vibe.

14. Underwater bedroom with bubbles

I’ve always loved SpongeBob’s obsession with blowing bubbles, so I made this design entirely inspired by that playful world. Imagine a children’s room bursting with color and lightness, where giant bubbles painted on the walls create a dreamy, floating effect. The pastel blue and white tones make everything feel fresh, airy, and fun.

To bring the theme to life, I used transparent furniture with rounded shapes to mimic real bubbles, alongside bedding with adorable bubble prints and SpongeBob illustrations. You could even add a bubble-pattern comforter set or SpongeBob throw pillows for that extra pop of personality. A round acrylic side table works perfectly here, keeping with the bubble-like aesthetic.

To make the bubble theme even more magical, place a small bubble machine in the room for special play moments — it will instantly turn the space into a floating wonderland.

Designer’s Tip

15. Rock Bottom mystery room

Ever since I saw the Rock Bottom episode, I’ve been fascinated by that mysterious, slightly eerie place full of neon lights and strange signs. For this design, I wanted to capture that same intrigue and atmosphere. The room is wrapped in deep purple and midnight blue tones, creating a sense of stepping into another world.

The focal point is a large mural of the Rock Bottom landscape, complete with glowing arrows and that foggy, dreamlike background. To enhance the neon vibe, I recommend adding LED strip lights in purple and blue or even a neon arrow wall sign to make the space feel immersive. A blacklight lamp can also highlight fluorescent accents, giving the whole room that surreal Rock Bottom glow.

Use soft, indirect lighting for most of the day, and switch to neon or blacklight effects at night to completely transform the room’s vibe and transport kids into this mysterious SpongeBob location.

Designer’s Tip

A world of creativity with SpongeBob designs

Creating these rooms inspired by SpongeBob SquarePants and his characters was an incredibly fun and nostalgic experience for me. Each design is meant to spark the imagination of little ones and transform their space into something unique, cozy and full of life. From the bright energy of SpongeBob’s room to the mysterious tones of Rock Bottom, these 15 styles offer options for every personality and style.

Plus, I focused on making each design not only visually appealing, but also functional, cozy, and easy to adapt in real life. If you’re looking for ideas for a SpongeBob themed room, here’s more than enough inspiration to get you started decorating.

Whether your little one loves Patrick, Sandy or even Plankton, there’s a design for every Bikini Bottom fan. And who knows… maybe you’ll end up wanting one of these rooms for yourself too!

FAQs about SpongeBob themed rooms

➭ How can I adapt these designs if I have a small space?

I have seen that with a little creativity, small spaces can be used very well. The ideal is to choose functional furniture and use wall decorations so as not to saturate the room. Wall murals or decorative vinyls are perfect to achieve a great impact without taking up space.

➭ Where can I get SpongeBob products to decorate?

Personally, I recommend looking at online stores like Amazon, Etsy, or stores specializing in children’s decor. You can also find many original and inexpensive items if you explore local markets or fairs.

➭ Is it possible to make a themed room on a low budget?

Of course, it does! What has worked for me is to combine DIY crafts with a few key accessories, like themed bedding or pictures. Painting a wall or putting up vinyl stickers can make a big difference without spending a lot.

➭ How do I combine thematic elements without making it look cluttered?

To keep the room from looking too cluttered, I recommend using a limited color palette and distributing the decorative elements well. For example, if the focus is SpongeBob SquarePants, choose a couple of key characters or motifs so that everything maintains coherence and balance.