Description
A small double (4ft, 120 × 190 cm) is the size many families move to when a child outgrows a single: there is room to sprawl, space for a parent at story time, and it suits teenagers and guest rooms too. The Jay-Be Simply Kids range now comes in this size, so you can choose the same UK-made, foam-free children’s mattress in four versions, from a simple sprung mattress to a fully waterproof one.
Every Simply Kids mattress is made by Jay-Be in the UK, is 100% foam-free, and arrives vacuum packed and rolled. Pick the version that suits your child below; each one is in stock at Jay-Be and carries Jay-Be’s five-year guarantee.
Choose your Simply Kids mattress
- Foam Free Sprung (16 cm): the everyday choice. An open-coil spring unit under a high-density insulator and soft Rebound e-Fibre™, with a soft woven cover and an orange border. Good value for a first big bed.
- Anti-Allergy Sprung (18 cm): the same foam-free build, deeper, with a Purotex® probiotic cover that helps reduce dust-mite allergens. Green border.
- Anti-Allergy e-Pocket® Sprung (18 cm): individually pocketed springs that move on their own, so the mattress follows the body more closely and a restless sleeper disturbs it less. Purotex® anti-allergy cover, yellow border.
- Waterproof Anti-Microbial Sprung (18 cm): a breathable, wipe-clean waterproof cover treated against bacteria, microbes and fungi, with 3D mesh vents in the border. The one to pick for bedwetting, allergies or a busy sleepover bed. Blue border.
Why foam-free matters for children
Instead of polyurethane foam, Jay-Be fills Simply Kids mattresses with Rebound e-Fibre™, a springy fibre made from recycled plastic bottles. Fibre lets air move through the mattress, so children sleep cooler, and there is no new-foam smell when you unwrap it. Jay-Be uses a natural salt-based fire retardant and OEKO-TEX® certified fabrics, and makes the range in its Yorkshire factory with zero waste to landfill.
Which beds does it fit?
All four are standard UK small doubles, 120 × 190 cm. They fit small double bed frames, divan bases and kids’ or teen beds built for a 4ft UK mattress. They are not for EU-size frames (120 × 200 cm or 140 × 200 cm). Depth is 16 cm for the Foam Free Sprung and 18 cm for the other three, which suits most bed frames; on a raised or cabin bed, check that the guard rail stands at least 16 cm above the top of the mattress.
Need a single instead? See the Simply Kids Waterproof single and the rest of the Jay-Be range. For a top bunk, the slimmer Jay-Be Bunk e-Sprung mattress is the safer fit.
Specification
| Size | UK small double, W120 × L190 cm |
|---|---|
| Depth | Foam Free Sprung 16 cm; Anti-Allergy Sprung, Anti-Allergy e-Pocket® and Waterproof 18 cm |
| Springs | Open coil (Foam Free, Anti-Allergy, Waterproof); individually pocketed e-Pocket® (Anti-Allergy e-Pocket®) |
| Feel | Medium firm to medium |
| Comfort layers | Rebound e-Fibre™ from recycled bottles; 100% foam-free |
| Covers | Soft woven (Foam Free); Purotex® anti-allergy (Anti-Allergy versions); breathable waterproof, anti-microbial (Waterproof) |
| Fire retardant | Natural salt-based treatment |
| Packed weight | About 16 kg (Foam Free), 18 kg (Anti-Allergy, Waterproof), 20 kg (e-Pocket®) |
| Delivered | Vacuum packed and rolled |
| Jay-Be codes | 800200, 802200, 807200, 803200 |
| Made in | United Kingdom, by Jay-Be |
| Guarantee | Five years from Jay-Be |
Delivery
Free delivery to mainland England and mainland Wales, including Anglesey. The mattress comes rolled by courier, and we confirm the delivery date with you after you order. We do not deliver to Scotland, Northern Ireland, the Isle of Man, the Channel Islands, the Isle of Wight or the Isles of Scilly.
Frequently asked questions
Is a small double big enough for a teenager?
Yes. At 120 cm wide it is 30 cm wider than a single, and at 190 cm long it suits most teenagers. If your child is already close to six foot, a 200 cm long mattress and bed may be more comfortable.
Which version should I choose?
For everyday use the Foam Free Sprung is the best value. Choose an Anti-Allergy version if your child has a dust allergy or eczema, the e-Pocket® if they are a restless or heavier sleeper, and the Waterproof if bedwetting or spills are likely.
Will it fit an EU-size bed?
No. These are UK small doubles (120 × 190 cm). EU frames usually take 120 × 200 cm or 140 × 200 cm mattresses, which are a different size.
How long before my child can sleep on it?
Unroll it on the bed and leave it for a few hours to recover its full depth. Turn it head to toe every few weeks for the first few months so it wears evenly.
How do I keep it clean?
Use a washable mattress protector on the woven and anti-allergy versions. The waterproof version can be wiped with a damp cloth and mild detergent; do not soak or machine wash any of them.




















































Reviews
There are no reviews yet.