Tuft & Springs Radiance 1000 Gel Hybrid Mattress
Mattress
Tuft & Springs Radiance 1000 Gel Hybrid Mattress
Size
Firmness
Construction
Depth (cm)
29
Layers
3
Layer Details
- Sleep Surface. A soft knitted cover gives a breathable, inviting finish. It's the first thing you'll feel, and it helps air move through the top of the mattress.
- Comfort Layer. Cooling Gel Fusion™ memory foam gently contours to your body, which means pressure relief at the shoulders and hips. The gel-infused design draws heat away from the sleep surface to help regulate your temperature through the night.
- Support System. 1000 individually responsive pocket springs move independently to support your body. That independence helps eliminate roll-together, so you're less likely to drift into the middle of the bed.
Layer details from mattressnextday.co.uk product page, September 2026.
- Fits where a UK king won't: The UK double is 15cm narrower and 10cm shorter than the UK king, which can decide whether a wardrobe and bedside tables still fit in the same room.
- Less disturbance from a close partner: With 67.5cm each you sleep nearer your partner than on a UK king, and the independent pocket springs mean less of their turning travels across to your side.
- Cooler when two share closely: Gel-infused memory foam draws heat away from the surface, which helps on a UK double, where two people lie near enough to warm each other up.
- Simple to dress: Double sheets are sold almost everywhere, and a 200 x 200cm double duvet is the standard match for the UK double.
- A sensible spare room choice: In a guest room, the UK double lets a visiting couple share for a few nights while leaving floor space for a chest of drawers.
This size suits you if...
You share the bed every night and your bedroom meets our suggested minimum of 2.6m x 2.8m, or you're kitting out a first flat or spare room and need a bed two people can share without losing space for a wardrobe.
Consider another size if...
You and your partner both like to sleep spread out, or one of you is broad-shouldered. We'd recommend the UK king instead, which gives 75cm each; allow at least 2.7m x 2.9m for the UK king.
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.
Will a Radiance 1000 UK double fit with bedside tables on both sides?
In a room at our suggested minimum of 2.6m x 2.8m, the UK double fits, but tables on both sides can leave little space to walk around the bed. We'd treat around 3m x 3m as the comfortable norm if you want a table each and easy access to both sides.
Is the Radiance 1000 double too warm for two people?
On a UK double you each have 67.5cm, so you lie close enough to share body heat. The gel-infused memory foam draws warmth away from the sleep surface, which should help, although if you both run very hot, the extra space of the UK king gives you more room to move apart.
How much smaller is the Radiance 1000 double than the king?
The UK double is 15cm narrower and 10cm shorter than the UK king. For a couple, that works out at 7.5cm less each. In return, it needs less floor space: we suggest at least 2.6m x 2.8m for the UK double, compared with 2.7m x 2.9m for the UK king.
Will I feel my partner moving on a Radiance 1000 UK double?
You sleep closer together on a UK double than on a larger size, so movement matters more. The 1000 pocket springs move independently, which means a partner turning over is less likely to jolt your side, and you're less likely to roll towards each other in the middle.
Is the Radiance 1000 UK double long enough if you're tall?
The UK double is 190cm long, or 6ft 3in. If either of you is tall enough that your feet reach the end, the UK king is 10cm longer, which gives you more room at the foot without changing the mattress's feel.