Simba Hybrid 1500 Pocket Kids Bunk Mattress
Mattress
Simba Hybrid 1500 Pocket Kids Bunk Mattress
Size
Firmness
Medium Firm
Construction
Depth (cm)
16
Layers
5
Layer Details
- Cover. A microquilted knitted cover in a criss-cross pattern, made with chemical-free fabrics. The elastane gives it stretch, so it moves with your child rather than pulling tight.
- Open-cell Simbatex® foam layer. Graphite-infused foam designed to dispel heat and fight overheating at night. Its open-cell structure offers thirty times more airflow than traditional memory foam, which means less of that clammy, sunk-in warmth.
- Spring comfort layer. A mixture of Aerocoil® and Conicoil® springs. These add a responsive, cushioned feel above the main support layers.
- High definition Simbatex® foam with edge support. A firmer, high definition foam layer with reinforced edges. That edge support helps the mattress stay stable when your child sits or sleeps near the sides.
- Zoned Simbatex® foam support base. A 12cm zoned foam base housing the 1500 pocket springs. This is where the real support comes from, keeping the spine aligned as your child grows.
Layer details from mattressonline.co.uk product page, September 2026.
- Sits safely below the guard rail: The 16cm profile is the point of this mattress, keeping your child low enough on a bunk or mid sleeper for the rail to do its job.
- Standard single, easy frame fit: At 90 x 190cm it fits UK single bunks, cabin beds and ordinary single frames alike, so it can move to a standard bed later.
- Adult-grade support in a child's size: With 1500 pocket springs inside a slim single, it responds to your child's weight independently rather than giving the flat feel of a basic foam slab.
- Cooler for warm little sleepers: Graphite-infused Simbatex® foam lets heat escape through its open-cell structure, which matters in a top bunk where warm air collects.
- Edges that cope with clambering: Reinforced edge support holds the sides firm when children sit on the edge or climb in and out, which on a bunk they do constantly.
This size suits you if...
You're buying for a bunk, cabin bed or mid sleeper and need a slim mattress that keeps the guard rail effective, or you're kitting out a shared siblings' room where two single beds plus a walkway is the only layout that works. It also suits a child's bedroom where the bed competes with a desk and toy storage, since a 90cm-wide single leaves the most floor free.
Consider another size if...
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Can you use the Simba Hybrid 1500 bunk mattress on a mid sleeper or cabin bed?
Yes. The reasons it works on bunks apply equally to mid sleepers and cabin beds: its 90 x 190cm footprint matches the standard UK single frame these beds use, and the slim 16cm depth keeps your child below the guard rail. Check your frame takes a standard UK single before ordering, as a small handful use shorter European sizes.
What room size do you need for the Simba bunk mattress in a UK single?
We suggest allowing at least 2.1m x 2.8m of floor space for a single bed, which most UK children's rooms manage comfortably. That guidance is per bed, so for siblings sharing one room with two singles and a walkway between, measure carefully. A bunk is often the answer where the floor won't take two, which is exactly what this mattress is for.
Does the Simba Hybrid 1500 kids bunk mattress come in any size other than a UK single?
No, the UK single is the only size Simba makes this mattress in. That makes sense given its purpose: bunks, cabin beds and mid sleepers are single-width frames, so a wider version would have nowhere to go. If you want a Simba hybrid in a UK double or larger for a standard frame, you'd be looking at a different model in their range.
What bedding fits the Simba kids bunk mattress?
Standard UK single bedding fits, since the mattress is a regular 90 x 190cm single. That's a genuine plus for bunks: single fitted sheets and a 135 x 200cm single duvet are the cheapest and most widely stocked bedding of any size. Given how often children's sheets need washing, having spares that are easy to find helps. Deep-pocket sheets aren't needed at 16cm.
Where can I buy the Simba Hybrid 1500 bunk mattress in a UK single?
The retailers currently stocking this mattress are listed on this page, with prices updated as they change them. Because it comes in the UK single only, you won't need to hunt through size options at the retailer's end: what's listed here is the full picture for this model.