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The gift that keeps on giving — every single day. The Monboxy Activity Play Mattress Set in Pink is the ultimate Montessori play set for children aged 1 to 16, transforming from a sofa to an indoor gym, sleepover mattress, play tent, playhouse, spaceship and so much more — limited only by your child's imagination.
With no sharp corners and soft, high-quality foam throughout, this set is designed with safety and free play at its heart. Removable, washable covers on every piece mean it's built for real family life — and the satisfying snap-together shapes keep little ones engaged and away from screens for hours.
This complete set includes a base mattress, a thinner flexible mattress and two trapezoidal shape pillows — all in a fresh, warm Pink — giving children an endless palette of configurations to explore, build and play.
- Base mattress: 170 × 85 × 15 cm — thick foam, removable & washable cover, folds flat
- Flexible mattress: 170 × 85 × 8 cm — thinner & bendy, removable & washable cover, folds flat
- 2 trapezoidal pillows: 56 × 56 × 31 cm — perfect building blocks, washable covers
- No sharp corners — safe for babies, toddlers and big kids alike
- Unlimited configurations — sofa, gym, tent, fort, ramp, sleepover bed & more
- Suits ages 1–16 — a Montessori gift that grows with your child for years
- Screen-free play — burns energy, sparks creativity and relieves stress indoors
The play set every parent wishes they'd bought sooner. Add the Monboxy Activity Play Mattress Set to your Nestling basket and watch the magic unfold.
Why parents choose Nestling
Every product researched, reviewed and chosen by us — with full accountability at every step.
Hand-picked from Europe
Carefully chosen from trusted makers — IGLU, MeowBaby, leg&go and more.
CE Certified & Safety Tested
Every piece meets EU Toy Safety Directive 88/378/EEC. Tested for harmful substances.
Quality First, Always
Rigorous review for materials, durability and parent feedback before listing.
Free EU Delivery
Ships duty-free from our EU warehouse. Easy 30-day returns.
Real Reviews From Real Parents
What Makes Nestling Different
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Everything parents ask before they buy
Free EU delivery in 4–10 business days. Ships from our EU warehouse within 1–2 business days, duty-free across Europe.
You have 30 days to return any product.
Every product is CE-certified and quality-checked for materials and safety before we list it. We hand-pick from trusted European makers.
Visa, Mastercard, Amex, Apple Pay and Google Pay — all through secure checkout.
Our EU warehouse, so delivery across Europe is fast and duty-free — no customs surprises.