Sleepeezee Severn Super King 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
£2,159
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Sleepeezee Severn Mattress
More available sizes
Mattress details
Mattress
Sleepeezee Severn Mattress
Size
Firmness
Medium
Construction
Foam
Pocket Spring
Memory Foam
Depth (cm)
34
Layers
4
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.
Key benefits
- 90cm each for two: Each of you gets the full width of a UK single, which means you can turn over or stretch out without nudging the person beside you.
- 15cm more each than the UK king: The UK super king gives each sleeper 15cm more than the UK king at the same length, a gap you notice most once a child climbs in.
- Space for night-time visitors: Across 6ft of width, a toddler or a large dog can settle in the middle while both adults keep a usable share of the soft pillow top.
- Distance does what foam can't: The 2,740 springs respond to each sleeper's movement, but the extra gap between you does more to keep a fidgety partner's turns from reaching you.
- In proportion in a big room: In a period house or generous master bedroom where a UK king can look slightly lost, the UK super king fills the floor in proportion.
This size suits you if...
You share with a partner who tosses and turns, a child or dog joins you most nights, and your bedroom comfortably clears our suggested minimum of 3m x 2.9m.
Consider another size if...
Your room is smaller than 3m x 2.9m, or your stairs and landing are tight. We'd recommend the UK king instead, which needs at least 2.7m x 2.9m.
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FAQ's
Is a Sleepeezee Severn super king big enough for two adults and a child?
Yes, for most families. At 180 x 200cm there is 90cm each for two adults, so a small child tucked between you still leaves you both room to lie flat. If a child sleeps in with you most nights, this is the Severn size we'd point you towards, because the UK king gives 15cm less each.
Sleepeezee Severn super king or king: which should I buy?
The UK super king is 30cm wider than the UK king and the same length, giving 15cm more each for two sharing. Choose the UK super king if space between you is the priority and your room allows at least 3m x 2.9m. In a tighter room, the UK king needs at least 2.7m x 2.9m.
Will a Sleepeezee Severn super king fit in a loft conversion?
It can, but measure the floor area where you can stand upright, rather than the whole room. We suggest at least 3m x 2.9m, and around 3.5m x 3.2m feels comfortable. A sloping ceiling tends to limit where the headboard can go, so check you can still get in and out on both sides.
Do I need deep fitted sheets for a Severn super king?
Yes. The Severn is 34cm deep, so look for super king fitted sheets with a deep pocket made for mattresses of at least that depth. On top, a 260 x 220cm duvet is the super king size. Bedding at 6ft wide usually costs a little more than for a UK king, so budget for it.
Is the Severn in a UK super king good if my partner is a restless sleeper?
It is the best Severn size for it. The pocket springs respond to movement, but distance is what really stops a partner's tossing and turning from reaching you, and 90cm each gives you plenty. If your partner is genuinely restless, the UK super king suits you better than the UK king, which gives 15cm less each.