Komfi Unity Memory Pocket 1000 King Size 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
£276.06
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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
- Room to sleep apart, together: At 75cm each for two people sharing, you can both spread out without meeting in the middle every time someone turns over.
- Pocket springs help with disturbance: Springs that move individually, paired with memory foam, mean one partner getting up early is less likely to wake the other.
- Extra length for taller sleepers: At 200cm, the UK king is 10cm longer than the UK double, welcome breathing room for anyone approaching six foot.
- Boxed delivery suits upstairs bedrooms: It arrives rolled and boxed, which makes getting a king-sized mattress up a narrow staircase far less of a struggle.
- A budget route into a bigger bed: The king sits at the affordable end of the hybrid market, so upgrading from a UK double needn't mean a luxury price.
This size suits you if...
You share the bed every night and have started to feel a UK double closing in, especially if one of you gets up hours before the other or you're spending months propped on pillows through pregnancy. It also makes sense if one partner is over six foot, since the extra 10cm of length over a UK double often matters more than the width. Allow at least 2.7m x 2.9m of bedroom.
Consider another size if...
Your bedroom is under our suggested 2.7m x 2.9m minimum, which is common in new build masters once the wardrobes go in. We'd recommend the UK double instead, where we suggest at least 2.6m x 2.8m.
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FAQ's
Is the Komfi Unity Memory Pocket 1000 king big enough for a couple?
Yes, comfortably for most. The UK king measures 150 x 200cm, giving 75cm each for two people sharing, and the memory foam and pocket spring combination should limit how much movement travels across the bed. If a dog routinely claims part of the mattress too, the extra width over a UK double is what stops that becoming a nightly negotiation.
How much bigger is the king than the double in this mattress?
The UK king is 15cm wider and 10cm longer than the UK double. The width is what couples feel night to night, while the length is the quiet win for taller sleepers, since 200cm gives someone approaching six foot proper clearance at both ends. Both sizes are available in the Komfi Unity Memory Pocket 1000.
What room size do I need for a king size Komfi Unity?
We suggest allowing at least 2.7m x 2.9m for a UK king, which leaves enough clearance to walk around the bed and open drawers. In a snug room, or one already fitted with wardrobes, measure carefully before committing. If it won't fit, the UK double needs slightly less, at a suggested 2.6m x 2.8m minimum.
Does the Komfi Unity Memory Pocket 1000 come in a super king?
No. The UK king, at 150 x 200cm, is the largest size Komfi makes this model in. The range runs from small single up to king across five sizes. If you have your heart set on a super king, you'd need to look at a different mattress.
Is the king size easy to get upstairs?
Easier than a conventional king, yes. The mattress arrives rolled and compressed in a box, so you're carrying a manageable package rather than manoeuvring a full 5ft x 6ft 6in mattress round the landing. It does need time to expand once unboxed, so plan for that before your old bed goes.