Komfi Unity Pocket 1000 Double Mattress in a Box
The Komfi Unity Pocket 1000 is a pocket sprung mattress delivered rolled in a box, available in five UK sizes from Small Single through to King.
- Minimises partner disturbance
- Easy to get up narrow stairs
- Includes small single & small double
£221.16
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Komfi Unity Pocket 1000 Mattress in a Box
More available sizes
Mattress details
Mattress
Komfi Unity Pocket 1000 Mattress in a Box
Size
Firmness
Medium
Construction
Pocket Spring
Rolled
Depth (cm)
Layers
2
Layer Details
Reflex foam top layer
A 3cm layer of high-density Reflex foam sits at the top of the mattress. It adds a layer of cushioning over the springs, so the surface feels softer than bare springs would.
Pocket spring core in Ecofoam
Traditional pocket springs, each moving independently, are encased in Ecofoam made from 100% recycled foam. Because the springs work separately, the mattress can respond to each sleeper, which means less disturbance from a partner's movement. The recycled foam is a plus if you prefer to cut down on waste.
Layer details from komfi.com and archerssleepcentre.co.uk product pages, October 2026.
Key benefits
- A shared size for typical rooms: At 135 x 190cm, the UK double fits comfortably in bedrooms where a UK king would crowd out wardrobes and drawers.
- 67.5cm each for two sharing: The UK double gives each of you 67.5cm of width, which is workable for most couples, though restless or broad-shouldered pairs may feel it.
- Pocket springs help in a shared bed: The 1000 pocket springs move independently, which means less of a ripple when your partner turns over in the night.
- Boxed delivery suits awkward access: It arrives compressed and rolled, so a turning staircase in an older terrace or a tight new build landing is far less of a battle.
- Bedding is cheap and everywhere: Double sheets and a 200 x 200cm double duvet are stocked at every price point, which helps if you're kitting out a whole home at once.
This size suits you if...
You're a couple in a typical UK bedroom and want the standard shared size without giving up floor space, you're furnishing a first flat or a whole house on a tight budget and need a low-cost boxed mattress that two people can share, or you're setting up a guest room that visiting couples will use a few times a year.
Consider another size if...
You and your partner both like room to spread out, or one of you sleeps restlessly. The UK king is 15cm wider and 10cm longer, and we'd recommend it if your room allows at least 2.7m x 2.9m.
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FAQ's
Is the Komfi Unity Pocket 1000 UK double big enough for a couple?
Yes, for most couples. The UK double is the long standing British standard for two sharing, and each of you gets 67.5cm of width. The pocket springs help too, since they respond to each sleeper individually and reduce disturbance from a partner's movement. Larger or restless couples may prefer the UK king, which is 15cm wider.
What room size do I need for the Komfi Unity Pocket 1000 in a double?
We suggest at least 2.6m x 2.8m for a UK double, with around 3m x 3m the comfortable norm. That guidance is ours, not Komfi's, and it allows space to walk around the bed and open drawers. If you want bedside tables on both sides, the larger figure is the one to aim for.
Will the boxed double fit up narrow stairs?
This is one of the format's genuine strengths. The mattress arrives compressed and rolled in a box, so instead of manoeuvring a rigid 135 x 190cm slab around a turning staircase, you're carrying a cylinder. Older terraces and tight new build landings are usually fine. Let it expand fully in the bedroom before use.
Should I get the Komfi Unity Pocket 1000 in a double or a king?
The UK king is 15cm wider and 10cm longer than the UK double, and we suggest a room of at least 2.7m x 2.9m for it. If your bedroom is around the typical UK size, the UK double leaves more room for furniture. If you both like space and the room allows, the extra width of the UK king is noticeable every night.
What bedding fits the Komfi Unity Pocket 1000 double?
Standard UK double bedding: sheets sized for 135 x 190cm, or 4ft 6in x 6ft 3in, and a 200 x 200cm double duvet. This is the most widely stocked size in Britain, so you'll find options at every price, which is a quiet advantage of the UK double if you're equipping several rooms at once.