Firmness
Type
Hybrid
Depth (cm)
30
Number of Layers
6
Trial Period (nights)
Warranty (years)
10
Price Range
£679 to £1,119
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.
This mattress suits sleepers who want a supportive, medium firm base without a hard surface feel. The pillow top and memory foam give you gentle, contouring comfort on top, which means pressure relief at the shoulders and hips, while the pocket springs beneath keep your spine reasonably well aligned. It's hypoallergenic and vegan friendly, and it's made in the UK by an NBF-approved manufacturer, which offers some reassurance about materials and build quality. The breathable knitted cover helps with temperature, although memory foam does hold a little more warmth than an all-spring design. Buying through MattressNextDay, you also get free next day delivery listed.
Key Features & what's inside
- Pillow Top. An additional layer of plush fillings sewn onto the top, which means a softer initial feel when you lie down. You get cushioned comfort without changing the medium firm support underneath.
- Knitted Cover. A soft knitted cover that's breathable, helping to keep you at an even temperature through the night.
- Body-Contouring Memory Foam. Super-soft memory foam that adapts to your shape, easing pressure on your joints. Its slow response minimises bounce, so you're less likely to feel a partner moving.
- Soft Polyester Comfort Layers. Soft polyester layers that add cushioning without compromising the medium firm feel.
- High-Density Polyester Support Layer. A denser polyester layer beneath the comfort fillings, which helps the mattress hold its structure and last longer.
- 4000 Pocket Spring System. 1000 traditional pocket springs combined with 3000 mini comfort springs. Each spring moves independently, which means support that follows your body rather than pushing back as one flat surface.
Layer details from mattressnextday.co.uk product page, September 2026.
Who's it NOT for?
If you prefer a genuinely soft mattress, the medium firm support here may feel too solid despite the pillow top. Fans of a springy, bouncy surface may also find the slow-response memory foam a little too still. And note the pillow top means the mattress can't be flipped, only rotated.
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Is the Sleepeezee Memory 4000 firm or soft?
It's rated medium firm. The pillow top and memory foam give a softer surface feel, but the 4000-spring system underneath keeps support on the firmer side of middle. It suits most back and combination sleepers, although lightweight side sleepers may find it slightly too firm.
How many springs does the Sleepeezee Memory 4000 have?
It has 4000 springs in total: 1000 traditional pocket springs providing the main support, plus 3000 mini comfort springs that fine-tune how the surface responds to your body.
Does the Sleepeezee Memory 4000 come with a guarantee?
Yes, it comes with a 10-year Sleepeezee manufacturer guarantee, as stated on the MattressNextDay listing. There's no sleep trial mentioned on that page, so check returns terms with your retailer before buying.
How deep is the Sleepeezee Memory 4000 mattress?
It's 30cm deep, which is on the taller side thanks to the pillow top. You may want deeper fitted sheets to get a proper fit.
What sizes does the Sleepeezee Memory 4000 come in?
Four sizes: UK Single, Double, King and Super King. Prices range from £679 to £1,119 depending on the size you choose.
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