Sleepeezee SensaGel 4000 Mattress
The Sleepeezee SensaGel 4000 is a firm hybrid mattress, 30cm deep, combining 4,300 springs in total (pocket springs and mini springs combined) with a gel foam and memory foam pillow top.
- Eases pressure at shoulders & hips
- Firm core helps keep spine aligned
- Cool-touch cover for warm sleepers
£899
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The Sleepeezee SensaGel 4000 gives you sturdy, supportive springs underneath with a softer, contouring surface on top, which takes some of the edge off a firm feel. It comes in five UK sizes from Single to Super King. It's a premium price, but the layered construction and the cool-touch cover go some way to justifying it, particularly if you sleep warm and want firm support without a hard surface.
Mattress specifications
Firmness
Firm
Type
Hybrid
Depth (cm)
30
Number of Layers
9
Trial Period (nights)
Warranty (years)
20
Price Range
£899 to £1,536
Best Sleeping Position(s)
Back Sleeping
Stomach Sleeping
Certifications
Assessed from the specification published by Furniture Village, captured September 2026, and from regular price comparison across our UK retail partners.
Why should you choose this mattress?
This mattress suits you if you want firm support but don't want to sleep on something that feels like a board. The pillow top houses memory foam and Dreamzone profiled gel foam, which means the surface cushions your shoulders and hips while the pocket spring core keeps your spine level. A cool-touch knitted cover helps if you tend to overheat at night. It's also hypoallergenic, a plus for allergy-prone sleepers. Furniture Village, where this listing appears, offers a 20-year guarantee on it, which is longer than most brands provide, though that's the retailer's term rather than Sleepeezee's own. At 30cm deep, it has a substantial, hotel-style presence on the bed frame.
Key features & layer details
Cool-touch knitted cover
A knitted cover with a cool-touch finish, which means the surface feels cooler when you first lie down. Helpful if you're a warm sleeper.
Pillow top: soft comfort layer
A soft layer at the top of the pillow top that provides the initial cushioning you feel when you get into bed.
Pillow top: high-density support layer
A denser layer beneath the soft one, which means the cushioning doesn't collapse under your weight. It keeps the pillow top feeling supportive rather than saggy.
Pillow top: memory foam
Memory foam moulds to your shape, easing pressure at the shoulders and hips. This is part of what softens the firm feel at the surface.
Pillow top: Dreamzone profiled body-contouring gel foam
A profiled gel foam that contours to your body, which means support follows your shape rather than pushing back uniformly. The gel element also helps with heat.
Pillow top: mini springs
Small springs within the pillow top add responsiveness, so the surface springs back quickly when you move. This makes changing position easier than on all-foam tops.
Core: traditional pocket springs
Individually wrapped springs that move independently, which means less motion transfer to your partner and support tailored to where your body needs it.
Core: mini springs
A second layer of mini springs in the core adds a finer level of responsiveness beneath the main pocket springs.
Core: high-density support layer
A firm base layer that anchors the whole mattress, giving the springs a stable foundation and helping edge-to-edge durability.
Layer details from furniturevillage.co.uk product page, September 2026.
Best suited for?
Warm sleepers
A cool-touch knitted cover and gel foam in the pillow top help the surface feel cooler, which suits anyone who tends to overheat at night.
Back sleepers
Firm pocket springs keep the spine level while the memory foam and gel foam cushion the hips and shoulders, so support never feels like a board.
Couples
Individually wrapped pocket springs move independently, which means less motion transfer, so one person turning over is less likely to disturb the other.
Allergy sufferers
The mattress is described as hypoallergenic, which makes it a sensible pick if you are prone to allergies and want a cleaner sleep surface.
Combination sleepers
Mini springs in the pillow top add responsiveness, so the surface springs back quickly and changing position is easier than on an all-foam top.
If you prefer a soft or medium feel, this firm mattress will likely feel too solid, even with the pillow top. Lightweight side sleepers may not sink far enough into the comfort layers to get proper pressure relief. And it's a stretch for tighter budgets.
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.
Sleepeezee SensaGel 4000 Mattress
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FAQ's
How firm is the Sleepeezee SensaGel 4000?
It's rated firm. The pillow top, with its memory foam and gel foam layers, softens the surface feel a little, but the underlying support is firm. It suits back and front sleepers and those who like a solid feel, though lightweight side sleepers may find it slightly too firm.
How many springs does the Sleepeezee SensaGel 4000 have?
It has 4,300 springs in total. That figure combines the traditional pocket springs in the core with the mini springs found in both the core and the pillow top, so it isn't a pocket spring count alone.
Does the Sleepeezee SensaGel 4000 come with a guarantee?
Furniture Village, which lists this mattress, offers a 20-year guarantee on it. That's the retailer's own term rather than a manufacturer claim, so check the guarantee position with whichever retailer you buy from.
Is the Sleepeezee SensaGel 4000 good for hot sleepers?
It has features aimed at warm sleepers: a cool-touch knitted cover and body-contouring gel foam in the pillow top. The spring-based core also allows more airflow than an all-foam design. It's a reasonable pick if you tend to overheat, though no mattress can guarantee a cool night.
What sizes does the Sleepeezee SensaGel 4000 come in?
It's available in UK Single, Small Double, Double, King and Super King. All sizes are 30cm deep.
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