Komfi Unity Memory Pocket 1000 Double Mattress in a Box
The Komfi Unity Memory Pocket 1000 is a mattress in a box combining memory foam with pocket springs, which means you get contouring comfort with individual spring support rather than foam alone.
- Memory comfort without the deep sink
- Responsive pocket spring support
- Boxed for easy carrying upstairs
£235.80
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Komfi Unity Memory Pocket 1000 Mattress in a Box
More available sizes
Mattress details
Mattress
Komfi Unity Memory Pocket 1000 Mattress in a Box
Size
Firmness
Medium Soft
Construction
Foam
Pocket Spring
Memory Foam
Depth (cm)
Layers
3
Layer Details
Neuform memory foam top layer
A layer of Neuform memory foam sits on top, aimed at comfort from edge to edge. It gives the softer, contouring feel of memory foam, which suits the medium-soft feel on record.
Pocket springs
1000 body-reactive pocket springs, each in its own cloth sleeve, spread pressure evenly. For you, that should mean a more responsive, supported feel than foam alone.
Ecofoam core
An Ecofoam core is layered with the pocket springs and has a reduced carbon footprint. It forms the base of the mattress, so you get the springs' support with a lower environmental impact.
Layer details from komfi.com and archerssleepcentre.co.uk product pages, October 2026.
Key benefits
- Made for sharing: At 135 x 190cm, the UK double gives 67.5cm each for two people sharing, the traditional shared size for UK couples.
- Fits most bedrooms: We suggest allowing at least 2.6m x 2.8m, which most UK bedrooms manage while still leaving space for bedside tables on both sides.
- Boxed delivery suits awkward access: It arrives rolled and boxed, which means a UK double can turn the tight stairs of an older terrace far more easily than a rigid mattress.
- Hybrid comfort at a low price: Memory foam over pocket springs gives contouring with individual spring support, so you get a hybrid feel at the affordable end of the market.
- Easy to dress: Standard double sheets and a 200 x 200cm double duvet fit this size and are stocked everywhere, at every price point.
This size suits you if...
You share the bed every night and want the established couples' size, your bedroom sits around the typical UK footprint and a UK king would leave it feeling cramped, or you sleep alone and want room to spread out, perhaps with a dog or cat claiming a corner. It also suits a guest room that regularly hosts visiting couples.
Consider another size if...
Your room comfortably exceeds 2.7m x 2.9m and you both want more space. The UK king is 15cm wider and 10cm longer, so we'd recommend the UK king instead if the room allows.
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FAQ's
Is the Komfi Unity UK double big enough for a couple?
Yes, for most couples. The UK double gives 67.5cm each for two people sharing, and the pocket spring base means one sleeper's movement transfers less than it would on foam alone. If either of you is broad-shouldered or a restless sleeper, the UK king adds 15cm of width and 10cm of length, provided your room can take it.
What room size does the Komfi Unity need in a UK double?
We suggest allowing at least 2.6m x 2.8m, with around 3m x 3m the comfortable norm. That's our guidance rather than Komfi's. It leaves enough walking space around the 135 x 190cm mattress, and in most rooms of that size you can still fit bedside tables on both sides plus a wardrobe.
Should I choose the Komfi Unity in a UK double or a UK king?
The UK double is 15cm narrower and 10cm shorter than the UK king. If your bedroom is a typical UK size, the UK double is usually the better balance of bed against floor space. If you can allow at least 2.7m x 2.9m and you both like room to sprawl, the UK king would suit you better.
Will the boxed UK double get up narrow stairs?
This is where the mattress in a box format helps. The UK double arrives compressed and rolled, so it's far easier to carry round a turning staircase in an older terrace, or across a tight new build landing, than a full-size 135 x 190cm mattress would be. Allow it some time to expand once unboxed.
Is a UK double a good size for a guest room?
Yes, it's arguably the most flexible guest room choice. At 135 x 190cm it sleeps visiting couples comfortably, and a solo guest gets plenty of space. It also fits rooms where a UK king would feel squeezed, and double bedding is cheap and easy to find, which matters for a bed that's only made up occasionally.