Komfi Serenity Pocket 1000 Mattress in a Box

Assessed from the specification published by archerssleepcentre.co.uk, captured October 2026, and from regular price comparison across our UK retail partners.

The independent pocket springs, each in its own cloth sleeve, are said to minimise partner disturbance, so you're less likely to feel a restless sleeper beside you. The soft reflex foam on top adds some cushioning to a medium feel, which should suit most back and side sleepers of average build. The reflex foam is hypo-allergenic, and the zipped cover removes and machine washes, so it's easy to keep fresh. It's manufactured in the UK and comes with a 10-year warranty, which the page presents as the manufacturer's. Being rolled in a box makes it easier to get through narrow doorways and up stairs.

Couples
Independent pocket springs, each in its own cloth sleeve, move separately, so you are less likely to feel a restless partner beside you.

Back sleepers
The medium feel is softened at the surface by a layer of reflex foam, giving some cushioning over the supportive spring core for average build sleepers.

Side sleepers
A soft reflex foam top sits over the medium support, adding a little cushioning at the surface where shoulders and hips press in.

Allergy sufferers
The reflex foam is hypo-allergenic, and the zipped cover comes off and machine washes, which makes it simple to keep the bed fresh.

Budget buyers
Described as an affordable pocket spring mattress, it still offers a 20cm depth and a 10-year manufacturer's warranty.

If you prefer sleeping on a firm mattress, this might not be the best choice, as it's designed to offer a medium support. At 20cm deep with a single foam layer over the springs, it's also a slimmer build than many. Heavier sleepers wanting deep cushioning may find it limited. It can't be flipped, only rotated head to toe.

How firm is the Komfi Serenity Pocket 1000?

Komfi designs it to offer a medium support, with a soft reflex foam top for some cushioning. That suits most average-weight back and side sleepers, although anyone wanting a firm feel will probably find it too forgiving.

What sizes does the Komfi Serenity Pocket 1000 come in?

It comes in a UK single (90 x 190cm), a UK double (135 x 190cm) and a UK king (150 x 200cm). There's no UK small single, UK small double or UK super king option.

How deep is the Komfi Serenity Pocket 1000?

It's 20cm deep, which is on the slimmer side. That's fine for most standard bed frames, but it won't feel as plush or tall as thicker pocket spring models.

Is the Komfi Serenity Pocket 1000 good for couples?

Yes, within reason. Each pocket spring sits in its own cloth sleeve, which minimises partner disturbance. It's only available up to a UK king, so couples wanting more width may find that tight.

Does the Komfi Serenity Pocket 1000 come with a trial or guarantee?

Archers Sleepcentre offers a 60-night guarantee, with exchange terms and a protector requirement, so check its conditions before buying. Separately, the mattress has a 10-year warranty, described as the manufacturer's.