Tempur Pro SmartCool Firm King Size Mattress
The Tempur Pro SmartCool Firm is a 21cm deep foam mattress built around TEMPUR® Advanced Material, a pressure-relieving foam that moulds to your body rather than springing back.
- Firm, supportive foam feel
- Minimises partner disturbance
- Cover designed to feel cooler
£1,899
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Tempur Pro SmartCool Firm Mattress
More available sizes
Last seen for £649 at Tempur on 22nd October 2026
Mattress details
Mattress
Tempur Pro SmartCool Firm Mattress
Size
Firmness
Firm
Construction
Foam
Depth (cm)
21
Layers
2
Layer Details
Cover
A QuickRefresh™ cover with SmartCool™ technology, designed to help the surface feel cooler when you get in. That matters with foam mattresses, which can otherwise run a little warm.
Core
TEMPUR® Advanced Material, a slow-response foam that moulds to your body under heat and pressure. You sink in gradually rather than bouncing, which spreads your weight and eases pressure points.
Layer details from furniturevillage.co.uk product page, September 2026.
Key benefits
- 75cm each, undisturbed: Two people get 75cm each, and the slow-response foam soaks up movement, which means a partner turning over is far less likely to reach you.
- Made for different schedules: If one of you gets up hours before the other, the foam's lack of bounce makes an early exit much easier to sleep through.
- Length for taller sleepers: At 200cm, or 5ft x 6ft 6in overall, the UK king suits anyone approaching six foot who finds their feet hanging off a standard-length bed.
- Firm support across the full width: The extra firm feel is consistent edge to edge, so the wider surface stays supportive rather than developing a soft middle where you both roll inwards.
- A shallow profile for a big bed: At 21cm deep, standard UK king fitted sheets go on without a fight, which is a small daily convenience with a mattress this wide.
This size suits you if...
You share the bed every night and 135cm no longer feels like enough, especially if one of you moves a lot or keeps different hours, since the motion-absorbing foam and the extra width work together here. It also suits couples where one partner is tall, because the 200cm length solves that problem without going to the full expense of a UK super king.
Consider another size if...
Your bedroom is smaller than the 2.7m x 2.9m we suggest as a minimum, or you sleep alone. For solo sleepers who want space, the UK double would suit you better and costs less to dress and run.
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FAQ's
Is the Tempur Pro SmartCool Firm in a UK king good for couples?
Yes, and it's arguably the size where this mattress makes most sense for two. You get 75cm each for two people sharing, and TEMPUR® Advanced Material absorbs movement rather than bouncing, so a restless partner disturbs you less. Lightweight side sleepers may still find the extra firm feel a little unforgiving, whatever the size.
Will the UK king Tempur Pro SmartCool Firm fit my bedroom?
The mattress itself is 150 x 200cm, but the room needs to breathe around it. We suggest at least 2.7m x 2.9m, with 3.2m x 3.2m comfortable if you want wardrobes open and space to walk both sides. In a smaller room, the UK double at 135cm wide is often the wiser buy.
Is a UK king long enough for someone over six foot?
At 200cm long, it gives taller sleepers a genuinely usable amount of extra length. That matters more with this mattress than most: the firm foam doesn't let your feet sink over the end comfortably, so having them fully on the surface is the point of sizing up.
Should we choose the UK king or the UK super king in this mattress?
The UK king is 30cm narrower than the UK super king, so if your room is large and you both sprawl, or a dog claims a share of the bed most nights, the UK super king earns the extra floor space. For most couples upgrading from a UK double, the UK king is enough.
Where can I compare prices on the UK king Tempur Pro SmartCool Firm?
Prices for this size change often, so we don't print them here. Compare the retailers listed on this page instead: the prices shown are updated as retailers change them, which matters on a mattress at this level, where even a small percentage discount is a meaningful saving.