
Salmon Pink Activity Play Mattress Set
Retrait actuellement non disponible
Quite Possibly the Most Marvellous Playground Disguised as a Sofa
This delightfully stylish play mattress set is the sort of invention that makes you wonder why your childhood was all hardwood floors and peril. Designed for the mini mountaineers in your life (aged 1 to 16 or thereabouts), it folds, flops and rearranges itself into anything from a comfy crashpad to a full-blown indoor jungle gym. Ideal for climbing, tumbling, building forts or flopping dramatically, it's the living room furniture that finally earns its keep.
Why Choose Our Salmon Pink Activity Play Mattress Set?
Convertible design: From delightful daybeds to impromptu obstacle courses, it fuels imagination without any plugs, screens or manual-reading required.
Marvellously soft foam comfort: Thoughtfully padded in gloriously smooth fabric, it's gentle on knees, elbows and all limbs in between—quite soothing even for the adults, we might add.
Lovely little learning aid: Encourages movement, balance and brilliant ideas, while giving your sofa a much-needed break. Has that certain Montessori flair too, you know.
Product Details:
Base Mattress: Foldable foam base (170 × 85 × 15 cm) with a washable cover for whenever life gets sticky.
Flexible Mattress: Bendy enough for forts, tunnels and legendary blanket races (170 × 85 × 8 cm).
Trapezoid Cushions: A pair of properly clever shapes (56 × 56 × 31 cm) for stacking, jumping or defending the fortress.
Materials: Polyester fabric certified safe to cuddle by OEKO-TEX STANDARD 100, with durable polyether polyurethane foam inside. Yes, quite the mouthful.
Care: Zip-off covers are machine washable. Folds neatly away with no spells or hexes required.
Shipping Details:
- Estonia, Latvia, Germany, Sweden, Denmark, Poland, Slovakia, Hungary: 24.99€
- Lithuania, Spain, The Netherlands, Belgium, Ireland, UK, Luxembourg, Slovenia, Czech Republic, Austria, Italy, France: 29.99€
- Finland, Bulgaria, Croatia, Greece, Portugal, Romania: 49.99€
Encourage properly splendid adventures—indoors, in your socks, out of the rain. Order now and turn your home into the most fabulously imaginative playground on the block.
SHIPPING + RETURNS
THE RATHER IMPORTANT BITS
This rather lovely piece ships directly from our brand partner - we work with independent brands who are absolutely brilliant and work frightfully hard to create beautiful things.
SHIPPING DESTINATIONS
Now, here's the thing - our wonderful brand partners ship to lots of different places, but not all of them can ship worldwide.
Some are brilliant at international shipping, others prefer to keep things closer to home.
At checkout, you'll see exactly where this particular brand can send your goodies.
We're terribly sorry, but shipping costs do vary rather wildly depending on where you are in the world. The exact figures pop up at checkout - no nasty surprises!
RETURNS
You have 14 days to return items.
Now, we absolutely adore our brand partners - they work incredibly hard and we do try to support them as much as we possibly can. So I'm rather afraid we have to pass the return postage costs back to you. Frightfully sorry about that!
🌍 PLEASE CHOOSE THOUGHTFULLY:
Our wonderful partners put their hearts into everything they make.
Ordering multiple sizes to try at home is rather hard on our planet and makes things jolly difficult for these brilliant independent creators.
When in doubt, do ask us first!
The brands we work with all have a chat option, and they love to chat!
PAYMENT
We're frightfully modern and accept all the usual suspects:
Visa, Mastercard, American Express, PayPal, Apple Pay, Google Pay, and Shop Pay
SECURE AS HOUSES
Everything's properly encrypted and secure - your details are safer than the Crown Jewels!
All prices in lovely British pounds £ GBP, though international chaps will see converted prices.
Any payment pickle? We're here to help sort things out! Contact us

We are Sostter
We met as children. Grew up a few streets apart. Built dens, rode bikes, and eventually — built Sostter.
It started with a shared love of objects that meant something…things with a past, or at least a purpose.
Now, Sostter is our grown-up version of a treasure hunt: a space where design meets storytelling.
We curate independent brands, one-of-a-kind finds, and everyday essentials with character.
Giving Back
We’re proud to support Sutton Night Watch, a grassroots UK charity making a real difference in the lives of those facing homelessness. Through regular donations of stock, supplies, and essentials, we back their mission to offer warmth, dignity, and practical help to anyone in need — right where it matters most.
Sell with us
Sostter partners with independent brands that intrigue, inspire, and bring something genuinely different to the world of fashion, design, and living. Join us!