Sealy Elevate Hagen Super King Mattress
The Sealy Elevate Hagen Mattress pairs a twice-tempered AlignSupport Coil system with a double layer of extra firm foam, which means you get a flat, unyielding surface with deep-down support.
- Extra-firm feel for back sleepers
- Cool-to-touch cover
- Allergy UK endorsed allergen protection
£1,999
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Sealy Elevate Hagen Mattress
More available sizes
Mattress details
Mattress
Sealy Elevate Hagen Mattress
Size
Firmness
Extra Firm
Construction
Foam
Memory Foam
Depth (cm)
28
Layers
3
Layer Details
AlignSupport Coil system
A patented, twice-tempered coil with a UniCased edge. It gives deep-down support and a supportive edge, so the mattress stays stable when you sit or sleep near the side.
MemorySense ComfortCore
A comfort core positioned to support the hips and lower back for pressure relief. You get a little cushioning where your body presses down most.
Extra firm foam
A double layer of extra firm foam sits alongside the ComfortCore. It keeps the surface flat and firm, with very little sink.
Layer details from crushedvelvetbedstore.co.uk product page, November 2026.
Key benefits
- 90cm for each of you: Two people sharing get 90cm each, the same width as a UK single, so a restless partner can turn over without ending up on your side.
- 15cm more each than a king: Compared with the UK king, every sleeper gains 15cm of width, which is often the gap between being nudged awake and sleeping through.
- Room for an extra body: A young child or a large dog can settle in the middle while both adults keep a real share of the mattress, not a narrow strip at the edge.
- A firm edge you can use: The UniCased edge supports the sides, which means the outer few centimetres stay usable when someone in the middle pushes you towards the edge.
- An even surface across the full width: The extra firm foam keeps the surface flat, so a heavier partner or a sleeping child is less likely to leave a dip you roll into.
- A bed that suits a large room: In a big period bedroom or a spacious master, the UK super king fills the wall properly where a smaller bed can look a little lost.
This size suits you if...
You share the bed with a partner who kicks, turns or gets up often, and you want real distance between you. It also fits if children or pets regularly join you overnight, and your bedroom comfortably clears 3m x 2.9m.
Consider another size if...
Your bedroom is under 3m x 2.9m, or a tight landing makes a 180cm-wide mattress hard to carry up. We'd recommend the UK king instead, and suggest at least 2.7m x 2.9m for it.
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FAQ's
What size bedroom do I need for a Sealy Elevate Hagen super king?
We suggest at least 3m x 2.9m for the UK super king, with around 3.5m x 3.2m feeling comfortable once you add bedside tables and space to walk round. In a loft conversion, measure where you can stand upright rather than the floor area, because a sloping ceiling often decides which wall the bed can go against.
How much room does each person get on a UK super king Hagen?
Two adults sharing get 90cm each. That is 15cm more each than on the UK king, and 22.5cm more each than on the UK double, so a partner who turns over a lot is much less likely to disturb you.
Is a UK super king big enough for two adults and a child?
For a young child joining you in the night, yes, in most cases. The 180cm width leaves both adults a usable share, and the extra firm surface stays flat, so a small child in the middle doesn't create a hollow that tips you inward. Regular sleeping as a family of four becomes tight on any standard size.
Sealy Hagen UK king or UK super king: which should I buy?
Both are 200cm long, so the choice comes down to width: the UK super king is 30cm wider. If you share with a restless sleeper, children or a dog, that extra width is worth having. If your room is under 3m x 2.9m, the UK king is the better fit, and we suggest at least 2.7m x 2.9m for it.
Will a Sealy Elevate Hagen super king fit up my stairs?
It measures 180 x 200cm, or 6ft x 6ft 6in, and is 28cm deep, so check the tightest turn on your stairs and landing as well as the bedroom door swing before ordering. Measure the route first, then compare the retailers listed on this page.