Tempur Ease 20cm Super King Mattress
The Tempur Ease is a 20cm memory foam mattress with a medium to firm feel.
- Eases pressure at hips & shoulders
- Minimises partner disturbance
- 100-night trial & 10-year guarantee
£926
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Tempur Ease 20cm Super King Mattress
Tempur Ease 20cm Mattress
More available sizes
Mattress details
Mattress
Tempur Ease 20cm Mattress
Size
Firmness
Medium Firm
Construction
Foam
Memory Foam
Depth (cm)
20
Layers
3
Layer Details
TEMPUR Adapt Memory Foam
A 3cm top layer with ultra sensitive cells that shape to your body and respond to your weight and temperature, which means a gradual, cradling sink rather than an instant one. This is the layer that gives Tempur its distinctive slow-response feel.
Memory Foam
An 8cm layer that absorbs motion as you move during the night. In practice, that means less partner disturbance when one of you turns over or gets up.
High Density Foam
A 9cm base layer that creates a solid, sturdy foundation for the softer foams above. It's what keeps the mattress feeling supportive edge to edge rather than saggy.
Layer details from mattressonline.co.uk product page, September 2026.
Key benefits
- 90cm each for two sharing: Each of you gets 90cm of width, which means a restless partner can turn, stretch or get up without crossing into your side.
- Motion absorption plus distance: The 8cm memory foam layer soaks up movement, and at this width there's simply more mattress between you before any disturbance reaches you.
- Space for night-time visitors: When a child pads in at 3am, or a large dog treats the bed as home, 180cm of width means everyone keeps a workable share.
- The fix for an undersized king: In a big master bedroom or a period property, a UK king can look lost; this size fills the space in proportion.
- Solid support edge to edge: The 9cm high density base keeps the wide surface feeling stable across its full 6ft span rather than soft at the sides.
This size suits you if...
You share every night and want the maximum mainstream sleeping space, your partner is restless enough that distance matters as much as the motion-absorbing foam, or children and pets regularly join you and you need everyone to fit. It also suits a large master bedroom where a UK king would look undersized against the wall.
Consider another size if...
Your bedroom is smaller than the 3m x 2.9m we suggest as a minimum, or you'd struggle to walk round the bed comfortably. We'd recommend the UK king instead: you keep the same 200cm length in a footprint most rooms handle easily.
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FAQ's
What room size do I need for the Tempur Ease super king?
We suggest at least 3m x 2.9m, with around 3.5m x 3.2m feeling more comfortable once you add bedside tables and wardrobe doors. Measure door swing and any landing turns too. The mattress itself is 180 x 200cm, so a tight room leaves you shuffling sideways past the footboard every morning.
Is the Tempur Ease super king good for a restless partner?
Yes, and this size is the strongest case for it. The 8cm memory foam layer absorbs movement before it travels, and with 90cm each for two people sharing, your partner's fidgeting happens further away from you. If disturbance is the main reason you're upgrading, the width does as much as the foam.
How much bigger is the super king than the Tempur Ease in a UK king?
The UK super king is 30cm wider than the UK king, with both at 200cm long. That extra width is what makes room for a child or dog joining in the night without anyone ending up on the edge. The feel, depth and layers are identical, so you're choosing on space and room size alone.
Is the Tempur Ease super king wide enough for a family?
At 6ft x 6ft 6in it's the largest size UK retailers stock as standard, so if children wander in most nights, this is the practical answer. Two adults and a small visitor fit without anyone clinging to an edge, and the high density base keeps the outer portions supportive rather than saggy.
Where can I buy the Tempur Ease in a super king?
Compare the retailers listed on this page. The prices shown here are updated as retailers change them, so it's worth checking back rather than assuming the first price you saw still stands. Stock of the UK super king can vary more than smaller sizes, which makes comparing before you commit especially useful.