Komfi Serenity Pocket 1000 Single Mattress in a Box
The Komfi Serenity Pocket 1000 Mattress in a Box combines individually sleeved pocket springs with a soft reflex foam top, which means a medium feel with less partner disturbance, delivered rolled up.
- Medium support for most sleepers
- Minimises partner disturbance
- Removable cover washes in the machine
£215.02
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Komfi Serenity Pocket 1000 Mattress in a Box
More available sizes
Mattress details
Mattress
Komfi Serenity Pocket 1000 Mattress in a Box
Size
Firmness
Medium
Construction
Foam
Pocket Spring
Rolled
Depth (cm)
20
Layers
2
Layer Details
Reflex foam
A soft, high density reflex foam that's hypo-allergenic. It gives a little cushioning on top of the springs, so the medium feel is softened at the surface.
Pocket spring core
Small diameter pocket springs, each housed in its own cloth sleeve. Because they move independently, they minimise partner disturbance and support you where you lie.
Layer details from archerssleepcentre.co.uk product page, October 2026.
Key benefits
- Slim enough for raised frames: The 20cm depth means less of a bunk or cabin bed's guard rail is lost to the mattress, although you should always confirm the frame maker's maximum depth before buying.
- Leaves floor space in small rooms: We suggest at least 2.1m x 2.8m of floor space, so a child's room still has space for a desk and a wardrobe alongside the bed.
- Easy to get upstairs: Because it's vacuum packed in a roll, you can manoeuvre it round a steep loft conversion staircase or through a narrow doorway before it opens out.
- Cover you can wash: The zipped cover comes off and goes in the washing machine, which helps a great deal when a child's bed sees spilt drinks or the odd night-time accident.
- A middle-ground feel for growing sleepers: Its medium feel with a soft reflex foam top should suit most back and side sleepers of average build, although teenagers who like a firm bed may find it a little soft.
This size suits you if...
You're fitting out a child's or teenager's room where the bed has to share limited floor space, you need a slim mattress for a bunk or mid-sleeper frame, or you're furnishing a box room that doubles as a study and only needs to sleep one guest.
Consider another size if...
You share the bed with a partner, or you're an adult who sprawls and wants more room across the mattress. We'd recommend the UK double instead: it's 45cm wider, gives 67.5cm each for two, and we suggest at least 2.6m x 2.8m.
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FAQ's
Will the Komfi Serenity Pocket 1000 UK single fit a bunk bed?
It's a standard UK single at 90 x 190cm, so it matches most single bunk, cabin and mid-sleeper frames. The deciding factor is depth: at 20cm, check it against the frame maker's stated maximum mattress depth, since a mattress that's too deep sits higher than the guard rail was designed for.
What size bedroom do I need for a UK single Komfi Serenity Pocket 1000?
We suggest allowing at least 2.1m x 2.8m of floor space. That leaves room to walk around the bed and open a wardrobe, which matters in a child's room or a box room where the bed competes with storage and a desk.
Is a UK single long enough for a tall teenager?
The UK single is 190cm long, which is 6ft 3in. That suits most teenagers, but if yours is already tall and still growing, the Komfi Serenity Pocket 1000 also comes in a UK king, which is 10cm longer. The UK double is the same length as the UK single, so it adds width only.
What bedding fits the Komfi Serenity Pocket 1000 single?
Standard UK single sheets fit the 90 x 190cm surface, and a single duvet at 135 x 200cm gives enough overhang for one sleeper. Check the pocket depth on any fitted sheet you buy, since the mattress is 20cm deep and a shallow sheet may not tuck under properly.
Should I get a UK single or UK double Komfi Serenity Pocket 1000 for a spare room?
If the room is small and guests usually come alone, the UK single needs at least 2.1m x 2.8m of floor space by our guidance. The UK double is 45cm wider and suits visiting couples, but we suggest at least 2.6m x 2.8m, so measure the room before you decide.