Simba Hybrid Kids Mattress
The Simba Hybrid Kids Mattress is a hybrid design made for children, available in UK single.
- Cooler feel for warm sleepers
- Sturdy edges for sitting & climbing
- Fits single & bunk bed frames
£399
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The Simba Hybrid Kids Mattress measures 16cm deep, which means it sits lower than most adult mattresses and suits bunk beds and mid sleepers where a slimmer profile matters. Simba publishes very little detail about this model on its own site, so we can't confirm the construction, firmness or trial terms here. If those details matter to you, and for a considered purchase they should, it's sensible to check with your chosen retailer before ordering.
Mattress specifications
Firmness
Medium Firm
Type
Hybrid
Depth (cm)
16
Number of Layers
4
Trial Period (nights)
Warranty (years)
Price Range
£399
Best Sleeping Position(s)
Back Sleeping
Stomach Sleeping
Combination Sleeping
Certifications
Assessed from Simba's published specification for this mattress, captured September 2026, and from regular price comparison across our UK retail partners.
Why should you choose this mattress?
This sits in the mid range for a children's hybrid. The 16cm depth is a genuine practical point: shallower mattresses work well with bunk bed safety rails, which usually need the mattress to sit below a set height. Being a hybrid, it combines springs with foam layers, which typically means a balance of support and pressure relief, although Simba doesn't detail the exact build on its product page.
Key features & layer details
Simbatex cooling foam
An airy, open-structure foam infused with graphite, sitting at the top of the mattress. It gives a cooler feel on the surface, which helps if your child tends to get warm in bed.
Aerocoil pocket springs
Titanium alloy Aerocoil micro pocket springs that compress individually. Each one responds to movement on its own, so the mattress adjusts as your child shifts and turns.
High-density foam layer
A firmer foam layer that gives the mattress its core stability. It also carries support right up to the edges, so the sides hold up when your child sits or climbs on them.
CertiPUR foam base
A zoned CertiPUR foam base that targets pressure points. It gives the layers above a steady foundation and adds some pressure relief where growing bodies need it.
Layer details from simbasleep.com and mattressnextday.co.uk product pages, October 2026.
Best suited for?
Bunk beds
The 16cm depth sits lower than most adult mattresses, which suits bunk bed safety rails that usually need the mattress to stay below a set height.
Children
Made as a children's hybrid, it combines springs with foam layers, which typically gives a balance of support and pressure relief for growing sleepers.
Guest rooms
Available in UK single only, this slimmer 16cm mattress works well in a spare single bed where a compact, low profile is useful.
It's only available in UK single, so it won't work for double beds or shared rooms needing larger sizes. If you want full transparency on materials, firmness and trial terms before buying, the sparse product page may frustrate you, and you'd need to confirm those details with a retailer first.
Save on an earlier or ex-display model
Some retailers still sell the earlier version of this mattress, or ex-display and returned stock at a lower price. These are the sizes where it costs less than the current model's best price.
Simba Hybrid Kids Mattress
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FAQ's
How deep is the Simba Hybrid Kids Mattress?
It's 16cm deep, according to Simba's own product page. That slimmer profile is useful for bunk beds and mid sleepers, where safety guidance usually requires the mattress to sit below the guard rail.
What sizes does the Simba Hybrid Kids Mattress come in?
It's available in UK single only. If your child's bed frame takes a different size, this model won't fit and you'd need to look elsewhere in Simba's range or at other brands.
How much does the Simba Hybrid Kids Mattress cost?
It comes in UK single only, and the price table on this page shows the current price. Prices can move around during sale periods, so it's worth comparing before you order.
Does the Simba Hybrid Kids Mattress come with a trial period?
Simba's product page for this model doesn't state a trial period, guarantee or delivery terms. Check directly with Simba or your chosen retailer before buying so you know exactly what returns cover you'll have.
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