Coolflex Premium Memory Hybrid Mattress
Mattress
Coolflex Premium Memory Hybrid Mattress
Size
Firmness
Construction
Depth (cm)
32
Layers
4
Layer Details
- Pillow Top. A plush pillow top acts as a built-in mattress topper, filled with Comfort Foam layers. In practice this gives you extra cushioning and pressure relief the moment you lie down.
- Cool Gel Memory Foam. A generous layer of Cool Gel Memory Foam actively draws heat away from the body for a cooler sleep. It also gently moulds to your body shape, which means personalised pressure relief at your hips and shoulders.
- Pocket Springs. High tensile steel pocket springs sit in individual fabric pockets and move independently. That means the mattress adapts to changes in your weight distribution through the night, and you feel less of your partner's movement.
- Reinforced Edge Springs. An outer ring of firmer pocket springs reinforces the edges. You can sleep or sit right at the side without the mattress sagging away beneath you.
- Knitted Cover. A knitted cover finishes the mattress. It is hypoallergenic and vegan friendly, useful if allergies are a concern.
Layer details from mattressnextday.co.uk product page, September 2026.
- Fits the average UK bedroom: At 135cm wide, this size leaves room for a wardrobe and drawers where a UK king would crowd the walls, and we suggest a room of at least 2.6m x 2.8m.
- Reinforced edges matter more at this width: With 67.5cm each for two people sharing, the firmer edge springs let you use the mattress right to the sides without rolling towards the middle.
- Pocket springs keep a shared bed calm: The 800 springs move independently, which means a partner turning over at this closer sharing distance is less likely to wake you.
- Cooler sharing: Two bodies raise the temperature under a duvet, and the cool gel memory foam draws heat away, so the closeness of a double feels less clammy.
- Easy to dress and to place: Standard double sheets and a 200 x 200cm duvet are stocked everywhere, useful if you're kitting out a whole home and spreading the budget across several rooms.
This size suits you if...
You share the bed every night and your room sits comfortably above our suggested 2.6m x 2.8m minimum, you're furnishing a guest room that visiting couples will use, or you sleep alone and want space to spread out, perhaps with a pet claiming a corner. It also fits if you want bedside tables on both sides without the bed swallowing the room.
Consider another size if...
You and your partner both like space and your room measures at least 2.7m x 2.9m. The UK king is 15cm wider and 10cm longer, and we'd recommend it instead, particularly for taller sleepers.
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Is the Coolflex Premium Memory Hybrid double big enough for two adults?
It gives 67.5cm each for two people sharing, which most couples find workable rather than generous. The reinforced edge springs help here, letting each of you sleep close to the side without the mattress sagging away, and the pocket springs reduce how much of a partner's movement you feel.
Will the Coolflex Premium Memory Hybrid double fit a small bedroom?
The mattress measures 135 x 190cm, and we suggest a room of at least 2.6m x 2.8m, with around 3m x 3m the comfortable norm. That leaves walking space and room for bedside tables on both sides. If your room is tighter than that, the UK small double is 15cm narrower and needs at least 2.4m x 2.8m.
Should I buy the Coolflex Premium Memory Hybrid in a double or a king?
It comes down to your room and how much sharing space you want. The UK double is 15cm narrower and 10cm shorter than the UK king, and we suggest at least 2.7m x 2.9m for the UK king. If you have that space and either of you is tall or a restless sleeper, size up.
Is the double a good choice for a guest room?
Yes, it's the natural guest room pick because it accommodates visiting couples as well as solo guests, and the pillow top gives soft initial cushioning that most people settle into quickly. Double bedding is also the cheapest and easiest to buy spares of, which helps when the room is only used occasionally.
Where can I buy the Coolflex Premium Memory Hybrid in a UK double?
Compare the retailers listed on this page; the prices shown are updated as retailers change them, so what you see reflects current stock rather than a snapshot. Availability can differ between sizes of the same mattress, so it's worth checking here rather than assuming every stockist carries the UK double.