Tempur Pro Plus SmartCool Medium Small Double Mattress
The Tempur Pro Plus SmartCool Medium is a 25cm deep all-foam mattress built around TEMPUR Advanced Material, which means it moulds slowly to your shape rather than springing back the moment you move.
- Cradles hips & shoulders
- Medium feel suits most sleepers
- SmartCool cover tackles foam heat
£1,699
Get the lowest price we've found
Save with the previous model
Some retailers still sell the earlier version of this mattress for less than the current model's best price.
Tempur Pro Plus SmartCool Medium Small Double Mattress
Tempur Pro Plus SmartCool Medium Mattress
More available sizes
Last seen for £749 at Tempur on 22nd October 2026
Mattress details
Mattress
Tempur Pro Plus SmartCool Medium Mattress
Size
Firmness
Medium
Construction
Foam
Depth (cm)
25
Layers
2
Layer Details
Cover
A QuickRefresh cover with SmartCool technology, designed to help the surface feel cooler to the touch. It sits over the foam as your first line of defence against overheating.
Filling
TEMPUR Advanced Material, a slow-response foam that softens with body heat and moulds closely to you. You'll feel a gradual sink-in rather than an instant bounce.
Layer details from furniturevillage.co.uk product page, September 2026.
Key benefits
- Real space for one sleeper: The UK small double is 30cm wider than the UK single, which means a solo adult can shift position, spread out and still stay on the mattress.
- Fits rooms a double cannot: At 15cm narrower than a UK double, it can leave walking space in a box room or loft conversion where a bigger frame would block the door.
- Slow-response foam, compact footprint: TEMPUR Advanced Material moulds gradually to your hips and shoulders, so a lone sleeper gets full pressure relief without paying for width they'll never use.
- A cooler surface in a snug room: Smaller bedrooms can run warm, and the SmartCool cover is designed to make the foam feel cooler to the touch overnight.
- Standard 4ft sizing: The small double is a standard UK size, so frames and fitted sheets are easy to find, and a normal double duvet works fine on top.
This size suits you if...
You're a solo sleeper who has outgrown a single and wants room to stretch without giving the bed the whole floor, your bedroom, loft conversion or studio can't take a 4ft 6in frame and still leave space to walk, or you're furnishing a guest room where couples stay a few weekends a year rather than every night. Allow at least 2.4m x 2.8m of floor space, which is our suggestion rather than Tempur's.
Consider another size if...
You share the bed every night, because 120cm between two adults on slow-response foam leaves little room to resettle. We'd recommend the UK double at 135cm wide instead, or the UK king if your room allows.
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.
FAQ's
Is a small double Tempur Pro Plus SmartCool big enough for a couple?
For occasional nights, yes. Across a 120cm width, two adults each get noticeably less room than on a UK double, and Tempur's slow-response foam means you sink in where you lie rather than rolling apart easily. It works well in a guest room used a few weekends a year; for nightly sharing, size up.
What room size do I need for a small double Tempur Pro Plus?
We suggest allowing at least 2.4m x 2.8m of floor space, which gives you room to walk round the bed and open drawers. That's Mattress Unboxed's own guidance, not Tempur's. If your room comfortably beats that, it may take a UK double, which is 15cm wider.
How much bigger is the small double than the single in this mattress?
The UK small double is 30cm wider than the UK single, at 120 x 190cm against 90 x 190cm. Length is identical. That extra width is the whole point for a solo sleeper: enough space to change position freely on foam that moulds closely to you, without stepping up to a double footprint.
Will a small double fit in a box room or loft conversion?
Often, yes, and that's where this size makes most sense. Being 15cm narrower than a UK double can be the difference between a door that clears and one that doesn't, or a loft room where you can actually stand beside the bed. Measure your usable floor, then allow our suggested 2.4m x 2.8m minimum.
Where can I buy the Tempur Pro Plus SmartCool in a small double?
Availability shifts, so rather than name stockists, we'd point you to the live comparison table on this page, which updates as retailers change their prices and stock. Check the listing specifies UK small double, 120 x 190cm, since EU sizes in Tempur's range have slightly different dimensions.