Firmness
Type
Hybrid
Depth (cm)
32
Number of Layers
4
Trial Period (nights)
Warranty (years)
10
Price Range
£299 to £499
Best Sleeping Position(s)
Certifications
Assessed from the specification published by MattressNextDay, captured September 2026, and from regular price comparison across our UK retail partners.
Two things stand this mattress apart at its price: temperature regulation and a firm, orthopaedic level of support. Cool gel memory foam sits in both the pillow top and the comfort layer, which means pressure relief without the trapped warmth standard memory foam can create. Beneath that, pocket springs move independently, so support adapts to your shape and your partner's movement is less likely to disturb you. The mattress is hypoallergenic, vegan friendly and meets the BS7177: 2008 fire safety standard for domestic use. MattressNextDay lists a 10-year guarantee and free next day delivery to mainland UK, though those are that retailer's own terms rather than a SleepSoul-wide offer.
Key Features & what's inside
- Pillow Top. A deep pillow top filled with cool gel memory foam, which means a cushioned surface that actively draws heat away from your body. It helps regulate your temperature through the night rather than letting warmth build up.
- Cool Gel Memory Foam. This layer adds pressure relief and support, moulding to your shape for a more comfortable night. It regulates body temperature better than standard memory foam, so hot sleepers get the contouring without the heat.
- Pocket Springs. Each spring sits in its own fabric pocket and moves independently, which means support and pressure relief exactly where your body needs it. It also helps limit motion transfer if you share the bed.
- Knitted Cover. A soft, breathable knitted cover that lets air move through the surface. That helps keep you at an even temperature all night long.
Layer details from mattressnextday.co.uk product page, September 2026.
Who's it NOT for?
If you prefer a soft, enveloping feel, this firm mattress is unlikely to suit you, and lightweight side sleepers may find it presses a little hard on hips and shoulders. It's also a heavy 32cm hybrid, so anyone who rotates their mattress solo may struggle. No trial period is listed, which cautious buyers should weigh up.
SleepSoul Coolology 3000 Ortho CoolGel Mattress
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Is the SleepSoul Coolology 3000 firm or soft?
SleepSoul rates this mattress as firm. That means a supportive, orthopaedic-style feel with less sink-in than a medium mattress, softened somewhat at the surface by the deep gel-filled pillow top. It suits back and front sleepers best, although lighter side sleepers may find it a little too firm.
Does the SleepSoul Coolology 3000 sleep cool?
It's built with temperature in mind. The pillow top and comfort layer both use cool gel memory foam, which draws heat away from the body and regulates temperature better than standard memory foam, and the knitted cover is breathable. If you're a hot sleeper, this is one of its strongest points.
What sizes does the SleepSoul Coolology 3000 come in?
It's available in UK Single, Double, King and Super King, with prices ranging from £299 to £499 depending on size. The mattress is 32cm deep, so check your fitted sheets will stretch to a deeper profile.
Does the SleepSoul Coolology 3000 come with a guarantee?
MattressNextDay lists a 10-year guarantee on this mattress, along with free next day delivery to mainland UK and delivery to your room of choice. These are that retailer's own terms, so if you buy elsewhere, check what the seller offers before you order.
Is the SleepSoul Coolology 3000 hypoallergenic?
Yes. The mattress is listed as hypoallergenic and vegan friendly, and it meets the BS7177: 2008 fire resistance standard for domestic use. That makes it a reasonable choice for allergy-prone sleepers, though it isn't a substitute for medical advice on specific allergies.
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