SleepSoul Cooler Ortho 4000 Series Pocket Gel EU Single Mattress
The SleepSoul Cooler Ortho 4000 Series is a firm hybrid mattress that pairs pocket springs with cool gel memory foam, which means you get orthopaedic-style support with less of the heat build-up foam is known for.
- Cool-touch cover for hot sleepers
- Firm, targeted spring support
- Hypoallergenic & vegan friendly
£399

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SleepSoul Cooler Ortho 4000 Series Pocket Gel Mattress
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Mattress details
Mattress
SleepSoul Cooler Ortho 4000 Series Pocket Gel Mattress
Size
Firmness
Firm
Construction
Foam
Pocket Spring
Hybrid
Memory Foam
Orthopaedic
Depth (cm)
26
Layers
3
Layer Details
Cooler™ Fabric Cover
A cool-feel knitted fabric cover that gives an instant cooling effect the moment you lie down. It also enhances breathability, helping air move through the mattress.
Cool Gel Memory Foam
Thick layers of memory foam infused with gel microbeads, which actively draw heat away from your body. That means the contouring comfort of memory foam without the warm, sticky feel it can sometimes have.
Pocket Springs
Firm pocket springs, each sitting in its own fabric pocket so they compress independently. This gives targeted support and pressure relief where your body needs it, rather than a uniform push-back.
Layer details from mattressnextday.co.uk product page, September 2026.
Key benefits
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