Komfi Serenity Memory Pocket 1000 Double Mattress in a Box
The Komfi Serenity Memory Pocket 1000 Mattress in a Box pairs a memory foam layer that softens with body heat with independent pocket springs, which means a medium feel that eases around you and still supports.
- Medium feel for most sleepers
- Foam that softens with body heat
- Removable washable cover
£278.96
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Komfi Serenity Memory Pocket 1000 Mattress in a Box
More available sizes
Mattress details
Mattress
Komfi Serenity Memory Pocket 1000 Mattress in a Box
Size
Firmness
Medium
Construction
Foam
Memory Foam
Pocket Spring
Rolled
Depth (cm)
20
Layers
2
Layer Details
Memory foam layer
A temperature-sensitive memory foam set below the cover that softens in contact with body heat. It means a gentle, contouring feel that adapts as you warm it.
Pocket spring core
Small-diameter pocket springs, each housed in its own cloth sleeve and working independently. This means support that responds to your body, with less of the whole bed moving at once.
Layer details from archerssleepcentre.co.uk product page, October 2026.
Key benefits
- Shared space that suits most rooms: At 135 x 190cm, the UK double leaves floor space for drawers and a wardrobe in rooms where a UK king would feel cramped.
- Less disturbance from your partner: Each pocket spring moves on its own, which means a partner turning over at 3am is less likely to ripple across to your side.
- Steadier edges when space is shared: With 67.5cm each for two sharers, Ecofoam around the perimeter springs limits edge sag, so sleeping near the side should feel more secure.
- Gentle contouring for both of you: The memory foam softens with body heat, so each sleeper gets a surface that moulds slightly to their own shape on a medium-rated bed.
- Easier to get up awkward stairs: It arrives vacuum packed and rolled, which helps if your home has a tight turning staircase or a narrow new build landing.
- Bedding that's simple to find: Standard double sheets fit, along with a 200 x 200cm double duvet, so kitting out a new room doesn't mean hunting for specialist sizes.
This size suits you if...
You share a bed with a partner who doesn't sprawl, and your bedroom is roughly the size of a typical UK main or second bedroom, or you're setting up a guest room where visiting couples will stay a few nights at a time.
Consider another size if...
You both sleep restlessly, 67.5cm each feels a little cramped, and your bedroom has floor to spare. We'd recommend the UK king instead, which gives 75cm each; allow at least 2.7m x 2.9m for it.
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FAQ's
Is the Komfi Serenity Memory Pocket 1000 UK double big enough for two people?
For most couples, yes. The UK double gives 67.5cm each for two people sharing, which suits sleepers who stay roughly on their own side. If one of you spreads out, the UK king gives 75cm each, so 7.5cm more per person. The independent pocket springs help keep movement on one side from disturbing the other.
What size bedroom do I need for a Komfi Serenity UK double?
We suggest at least 2.6m x 2.8m for a UK double, with around 3m x 3m being the comfortable norm. That larger room is what makes bedside tables on both sides practical. In a smaller second bedroom you may need to push one side against the wall, which is fine for a solo sleeper but awkward for couples.
What sheets and duvet fit the Komfi Serenity double mattress?
Standard UK double sheets fit, and a 200 x 200cm double duvet covers it well. The mattress is 20cm deep, so check the pocket depth on fitted sheets before buying. Double bedding is sold almost everywhere, which helps if you're furnishing a whole home at once and want to keep extras affordable.
Should I choose the UK double or UK king in the Komfi Serenity Memory Pocket 1000?
Choose the UK double if your room is closer to our 2.6m x 2.8m minimum. The UK king is 15cm wider and 10cm longer, which suits taller sleepers and couples wanting more room, but we suggest at least 2.7m x 2.9m for it. The feel and firmness are identical, so room size should decide.
How big is the Komfi Serenity UK double in feet and inches?
The UK double measures 4ft 6in x 6ft 3in, which is 135 x 190cm. It's 45cm wider than the UK single at the same length, so a solo sleeper with a dog or cat claiming a corner gets plenty of room. Because it arrives rolled, a narrow landing or turning staircase is far less of a worry.