Sleepeezee Cooler Extreme 1800 Super King Mattress
The Sleepeezee Cooler Extreme 1800 is a medium-feel hybrid built around temperature control.
- Disperses heat for warm sleepers
- Minimises partner disturbance
- Medium feel suits most sleepers
£1,099
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Sleepeezee Cooler Extreme 1800 Mattress
More available sizes
Mattress details
Mattress
Sleepeezee Cooler Extreme 1800 Mattress
Size
Firmness
Medium
Construction
Foam
Pocket Spring
Hybrid
Gel
Depth (cm)
30
Layers
4
Layer Details
Cover
A Cooler Extreme fabric cover with cool-touch properties, which means the surface feels noticeably cooler when you first lie down. It works by dispersing heat away from your body through the night.
StayCool gel
Pressure-sensitive StayCool gel that creates a supportive, edge to edge floating sensation. It also reduces heat build-up, so warm sleepers should feel a genuine difference.
Pocket springs and Softech springs
Pocketed and Softech springs deliver body-cushioning comfort, with 1,800 springs in the king size. Each spring moves independently, which means support that follows your shape rather than pushing back as one unit.
Superbond foam
Superbond foam forms part of the filling system, adding a stable comfort layer beneath the springs and gel.
Layer details from furniturevillage.co.uk product page, September 2026.
Key benefits
- Real distance from a restless partner: With 90cm each for two sharing, a partner who turns over all night is further away, and the independently moving pocket springs soften whatever movement still reaches you.
- Room when the household piles in: The UK super king is 30cm wider than the UK king, which means a child arriving in the early hours doesn't leave one adult balanced on the edge.
- Cooling spread across the full width: Extra bodies in one bed add warmth, so the cool-touch cover and StayCool gel suit families who share regularly and tend to wake up too hot.
- Wider without getting longer: The UK super king and the UK king are the same length, so you gain width while the space at the foot of the bed stays unchanged.
- A patch for a large dog: If a big dog sleeps on the bed every night, the extra width gives it a spot of its own rather than the space around your legs.
This size suits you if...
You share with a partner who fidgets or gets up in the night and you want 90cm each, or children and a large dog regularly join you. Your bedroom also comfortably clears our suggested 3m x 2.9m, so a UK king would look slightly lost in it.
Consider another size if...
Your bedroom is under our suggested 3m x 2.9m, or the door and wardrobes would struggle to open around the bed. We'd recommend the UK king instead, which needs at least 2.7m x 2.9m.
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FAQ's
Is the Sleepeezee Cooler Extreme 1800 super king big enough for two adults and a child?
For occasional visits, yes. Two adults get 90cm each, and the UK super king is 30cm wider than the UK king, so a small child can squeeze in without anyone being pushed to the edge. If a child joins you every night, you'll still feel the squeeze a little, but far less than on a UK king or a UK double.
Should I choose the Sleepeezee Cooler Extreme 1800 in a UK king or a UK super king?
Choose the UK super king if a restless partner is your main problem, because it gives 15cm more each for two sharing at the same length. The catch is floor space: we suggest at least 3m x 2.9m for the UK super king, compared with at least 2.7m x 2.9m for the UK king.
Will a super king Sleepeezee Cooler Extreme 1800 stay cool with children or pets in the bed?
The cool-touch cover and StayCool gel run across the whole surface, so the cooling reaches every sleeper. A crowded bed will still feel warmer than two adults alone. The width helps here, because on a UK super king people can spread out slightly rather than lying pressed together.
Can the Sleepeezee Cooler Extreme 1800 super king fit in a loft conversion bedroom?
Often, but the sloping ceiling usually decides which wall the bed goes against. You'll need the full 180cm of width under reasonable headroom, and the mattress is 30cm deep, which adds height beneath the slope. Allow at least 3m x 2.9m of usable floor, then check that you can sit up on the lower side.
Does the Sleepeezee Cooler Extreme 1800 super king help if my partner is a restless sleeper?
It's one of the better ways to deal with it. Distance matters more than any comfort layer, and 90cm each keeps a fidgety partner further away than a UK king can. The pocket springs move individually as well, so the turning that does reach your side tends to feel muted rather than rolling across the bed.