Komfi Serenity Memory Pocket 1000 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
£224.48
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The Komfi Serenity Memory Pocket 1000 is a 20cm deep, medium-rated mattress with a temperature-sensitive memory foam layer over independent pocket springs. It arrives vacuum packed and rolled, and the cover unzips for washing. It suits sleepers who want a middle-of-the-road feel with some contouring. It comes in a UK single, UK double and UK king, and Archers Sleepcentre offers its own 60-night comfort guarantee, which has conditions.
Mattress specifications
Firmness
Medium
Type
Pocket Spring
Depth (cm)
20
Number of Layers
2
Trial Period (nights)
Warranty (years)
Price Range
£224 to £323
Best Sleeping Position(s)
Back Sleeping
Combination Sleeping
Side Sleeping
Certifications
Assessed from the specification published by archerssleepcentre.co.uk, captured October 2026, and from regular price comparison across our UK retail partners.
Why should you choose this mattress?
The memory foam softens when it meets body heat, so the surface moulds gently around you rather than feeling hard from the first minute. Underneath, each pocket spring sits in its own cloth sleeve and works independently, which helps the mattress respond to different parts of your body. Ecofoam around the perimeter springs limits edge sag, so sitting on the side should feel steadier. The cover is removable and machine washable, and the mattress is made in the UK. It's rated medium, so it should suit most back sleepers and many side sleepers, although very light sleepers may want more cushioning.
Key features & 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.
Best suited for?
Back sleepers
A medium rating with memory foam over pocket springs gives a middle-of-the-road feel, which should suit most back sleepers who want gentle contouring.
Side sleepers
Temperature-sensitive memory foam softens with body heat and moulds around you, which should give many side sleepers some cushioning at the shoulders and hips.
Couples
Each pocket spring sits in its own cloth sleeve and works independently, so less of the whole bed moves at once when your partner shifts.
Allergy sufferers
The removable cover is machine washable, so you can wash it whenever you like and keep the sleeping surface fresh.
If you prefer sleeping on a firm mattress, this might not be the best choice, as it's rated medium. Anyone wanting a very soft, plush surface may also find it too supportive. It's single-sided, so you can rotate it head to toe but not flip it. No spring count is published either.
Save on an earlier or ex-display model
Some retailers still sell the earlier version of this mattress, or ex-display and returned stock at a lower price. These are the sizes where it costs less than the current model's best price.
Komfi Serenity Memory Pocket 1000 Mattress in a Box
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FAQ's
How firm is the Komfi Serenity Memory Pocket 1000?
It's rated medium, with a memory foam layer on top that softens with body heat. That suits most back sleepers and many side sleepers, although anyone wanting a firm or very soft feel may prefer a different rating.
What sizes does the Komfi Serenity Memory Pocket 1000 come in?
It comes in a UK single, UK double and UK king. It isn't offered in a UK small double or UK super king, so check your bed frame size before choosing.
How deep is the Komfi Serenity Memory Pocket 1000?
It's 20cm deep. That's worth checking against your bed frame and any bedding you already own, as it won't feel as tall as a thick pillow-top mattress.
Does the Komfi Serenity Memory Pocket 1000 come with a trial?
Archers Sleepcentre offers a 60-night Comfort Guarantee, which is the retailer's own offer, with a 42-night settling-in period and a required Purecare protector. It excludes clearance items, so check it applies to your mattress.
Can you wash the cover on the Komfi Serenity Memory Pocket 1000?
Yes. The zipped cover is removable and machine washable, which makes it easier to keep fresh. It's made from a stretch knit fabric.
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