Sleepeezee Severn Mattress
The Sleepeezee Severn is a 34cm deep pocket sprung mattress with a pillow top, handcrafted in Kent by a brand that has held a Royal Warrant as suppliers to HM King Charles III for more than 60 years.
- Graphite foam disperses heat
- Deep, hotel-style feel
- Hypoallergenic bamboo cover
£1,199
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The Sleepeezee Severn pairs 2,740 springs, a mix of traditional and mini pocket springs, with graphite memory foam, which means you get responsive support with pressure relief that draws heat away from your body. The medium tension suits a variety of sleep positions. It sits at the premium end, but the depth and layered build go some way to justifying that.
Mattress specifications
Firmness
Medium
Type
Pocket Spring
Depth (cm)
34
Number of Layers
4
Trial Period (nights)
100
Warranty (years)
10
Price Range
£1,199 to £2,159
Best Sleeping Position(s)
Side Sleeping
Back Sleeping
Combination Sleeping
Certifications
Assessed from the specification published by Feather & Black, captured September 2026, and from regular price comparison across our UK retail partners.
Why should you choose this mattress?
Choose the Severn if you want a deep, hotel-style feel without the heat that traditional memory foam can trap. The graphite in the foam disperses warmth away from the body, and the bamboo cover is breathable and naturally hypoallergenic, so hot or allergy-prone sleepers are well served. The 2,740 springs respond to movement rather than fighting it, and the pillow top adds a soft first impression before the support kicks in. It comes in four sizes from UK Single to Super King. If you buy through Feather & Black, they list a 100-night trial and a 10-year guarantee, though check terms with whichever retailer you use.
Key features & layer details
Pillow top
A cloud-like pillow top with an additional layer of adaptive memory foam and mini pocket springs, which means a soft, cushioned surface the moment you lie down. It gives the mattress that plush hotel character without you sinking straight through to the springs.
Graphite memory foam
Graphite memory foam relieves pressure as you sleep while dispersing heat away from the body. If ordinary memory foam has left you overheating in the past, this layer is designed to prevent that.
Springs
Responsive springs combining mini comfort and traditional pocket springs for enhanced support. In practice that means the mattress adapts to your shape and weight rather than pushing back in one uniform way.
Cover
A breathable bamboo cover with a silky smooth knitted surface, naturally antibacterial and hypoallergenic. A sensible choice if you have allergies or simply sleep warm.
Layer details from featherandblack.com product page, September 2026.
Best suited for?
Warm sleepers
Graphite in the memory foam disperses heat away from the body and the bamboo cover is breathable, so the deep, plush feel doesn't leave you overheating.
Allergy sufferers
The bamboo cover is naturally hypoallergenic and antibacterial, which makes this a sensible pick if you want a cleaner-feeling sleep surface.
Combination sleepers
Medium tension suits a variety of sleep positions, and the responsive springs adapt to your shape as you turn, so changing position feels easy.
Couples
The 2,740 springs respond to movement rather than fighting it, and the range runs up to Super King, giving two people plenty of room.
Side sleepers
A cushioned pillow top and pressure-relieving graphite memory foam give a soft first feel, which suits shoulders and hips as they press into the surface.
At its starting price, this is a stretch if you're on a tighter budget. The medium tension suits most sleepers, although heavier people who prefer a firm feel may find it a little soft, and the plush pillow top won't please anyone who likes a taut, minimal sleeping surface. At 34cm deep, check your fitted sheets will cope.
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 Severn Mattress
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FAQ's
Do you need to flip the Sleepeezee Severn mattress?
No. The Feather & Black listing describes it as a no turn mattress, though it also recommends rotating it regularly, which helps the fillings settle evenly and extends its life.
Is the Sleepeezee Severn good for hot sleepers?
It's a reasonable choice. The graphite memory foam is designed to disperse heat away from the body, and the bamboo cover is breathable, so it should run cooler than standard memory foam builds.
How firm is the Sleepeezee Severn mattress?
It's a medium tension, which the listing says offers support for a variety of sleep positions. The pillow top adds a soft initial feel, so it leans comfortable rather than firm.
Does the Sleepeezee Severn come with a trial and guarantee?
Feather & Black lists a 100-night trial and a 10-year guarantee. These are the retailer's own offers rather than Sleepeezee's, so if you buy elsewhere, check that seller's terms before ordering.
How many springs does the Sleepeezee Severn have?
It contains 2,740 springs, combining traditional pocket springs with mini pocket springs in the pillow top. Each spring moves independently, which means better contouring and less disturbance from a partner's movement.
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