Sealy Hampton Geltex Enhance 1000 Pocket Mattress
Mattress
Sealy Hampton Geltex Enhance 1000 Pocket Mattress
Size
Firmness
Medium Firm
Construction
Depth (cm)
25
Layers
3
Layer Details
- Knitted cover. A soft knitted sleeping surface that adds a touch of cosiness and warmth. Knitted covers are also breathable, so air can pass through rather than building up around you.
- Geltex. A breathable foam layer with an open-cell structure, which means heat escapes rather than being held against your body. It's designed for a cooler night's sleep than conventional foams.
- Pocket springs. Individual springs encased in cloth pockets that adapt to your movement independently. This gives each part of your body its own level of support and helps limit motion transfer between partners.
Layer details from mattressonline.co.uk product page, September 2026.
- 90cm of space each: Two people sharing get 90cm each, which means a partner who fidgets or sprawls stops being your problem for most of the night.
- Springs that keep movement local: The 1000 pocket springs compress independently, so when someone turns over on their side of 180cm, the ripple rarely reaches yours.
- Room for night-time visitors: When a child pads in at 3am or the dog claims a corner, 6ft of width means the adults still keep a fair share.
- Cooler across a bigger surface: Geltex foam's open-cell structure lets heat escape, and with this much space you can also simply move to a cooler patch.
- Sized for larger bedrooms: In a generous period master or new build main bedroom, a UK king can look a little lost; this fills the space properly.
This size suits you if...
You share the bed every night and one of you is a genuinely restless sleeper, your children or pets treat your bed as partly theirs, or your main bedroom is large enough that a smaller mattress would look undersized in it. We suggest allowing at least 3m x 2.9m of floor space, with around 3.5m x 3.2m feeling comfortable.
Consider another size if...
Your bedroom falls short of the 3m x 2.9m we suggest for a UK super king. We'd recommend the UK king instead: it's 30cm narrower but the same length, and needs a smaller room at 2.7m x 2.9m.
Similar Mattresses in This Price Range
Did you know? On Mattress Unboxed we have over 1,000 different mattresses to suit all types of sleepers. View all mattresses.
How big is the Sealy Hampton Geltex Enhance in a UK super king?
It measures 180 x 200cm, or 6ft x 6ft 6in in imperial. That works out at 90cm each for two people sharing, the most sleeping space of any standard UK size. It's the largest of the four sizes this mattress comes in.
Will the Sealy Hampton super king fit in my bedroom?
We suggest allowing at least 3m x 2.9m of floor space, with around 3.5m x 3.2m feeling right if you want bedside tables and easy walking room on both sides. Check door swing and any tight landing turns too, as those catch people out more often than the room itself at this size.
Is the UK super king worth it over the UK king for a restless partner?
Usually, yes. The UK super king is 30cm wider than the UK king and the same length, and that extra width is often what finally makes a fidgety partner easy to ignore. The pocket springs already limit motion transfer, but distance does the heavier lifting here.
Is the Sealy Hampton super king big enough for sharing with children or pets?
It's the best-suited size for it. With 90cm each for two adults, a child climbing in at night or a large dog at the foot still leaves everyone a workable share. On a UK king or UK double, the same visitors tend to push one adult to the edge.
Where can I find the best price on the super king Sealy Hampton?
Compare the retailers listed on this page. The prices shown here are updated as retailers change them, so checking back before you buy is worthwhile, particularly around seasonal sale periods when larger sizes are often discounted more heavily in cash terms.