Arthur Sleep Cool Comfort Single Mattress
The Arthur Sleep Cool Comfort is a pocket spring mattress that pairs its springs with advanced cooling foams, which means the foam layer is designed to draw heat away rather than trap it against you.
- Cooling foams for warm sleepers
- Minimises partner disturbance
- Classic pocket spring feel
£279
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Arthur Sleep Cool Comfort Mattress
More available sizes
Last seen for £369 at Mattress Man on 8th November 2026
Last seen for £409 at Mattress Man on 26th October 2026
Mattress details
Mattress
Arthur Sleep Cool Comfort Mattress
Size
Firmness
Medium
Construction
Pocket Spring
Depth (cm)
Layers
5
Layer Details
Gel foam
A cooling gel foam sits at the top to counteract the heat retention of memory foam and keep the surface breathable. If you tend to overheat, this is the layer that matters most.
Memory foam
Memory foam works with the gel layer above it to give body-cradling comfort. You get that gentle, sink-in contouring, with the gel there to take the edge off the warmth.
Comfort foam
A dense layer of eco-high resistance PU foam that gives a soft, cushiony feel. It adds support beneath the softer layers above, so the top doesn't feel too sinky.
Convoluted foam
High resilience convoluted foam spreads your body weight evenly for targeted pressure relief. It should help the mattress ease off heavier areas such as hips and shoulders.
Encased foam edge
A 10cm encased foam structure surrounds the pocket springs for extra support and stability. It should make the sides feel steadier when you sit on the edge or sleep close to it.
Layer details from arthursleep.co.uk and mattressman.co.uk product pages, October 2026.
Key benefits
- Fits compact rooms: At 90cm wide it leaves floor space free in a child's room already crowded with a wardrobe, desk and toy storage.
- Cooling where teens need it: The cooling foams draw heat away rather than trap it, useful for teenagers who run warm under a duvet in a small, stuffy bedroom.
- Sensible for spare rooms: A single suits a study that doubles as guest space, since the bed can sit against a wall without dominating the room.
- Cheap, easy bedding: Standard single sheets and a 135 x 200cm single duvet fit, and both are the most widely stocked bedding of any UK size.
- Pairs well in shared rooms: Two UK singles plus a walkway fit where one larger bed would leave siblings with no space to play.
This size suits you if...
You're buying for a child or teenager and want a mattress that helps with overheating, you need a bed for a spare room or home office that hosts the occasional guest, or you're a single adult in a compact room, perhaps a first flat or student room where the frame came with the tenancy but the mattress didn't.
Consider another size if...
You're an adult who shares the bed, or a restless solo sleeper who wants more room to spread out. We'd recommend the UK double instead, which is 45cm wider and the same length; allow at least 2.6m x 2.8m of floor space for it.
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FAQ's
Will the Arthur Sleep Cool Comfort single fit a bunk bed or mid sleeper?
The 90 x 190cm footprint matches standard UK bunk and mid-sleeper frames, so the width and length should be fine. The caution is depth: raised frames often have a maximum mattress depth for guardrail safety, and Arthur Sleep doesn't publish a depth for this mattress, so check with the brand before ordering for a raised frame.
Is the UK single Arthur Sleep Cool Comfort good for a child's room?
Yes, with a caveat. The single footprint leaves room for a wardrobe, desk and toy storage in a typical child's bedroom, and the cooling foams help warm sleepers. The caveat is that Arthur Sleep doesn't state a firmness level, so if your child needs a specific feel it's sensible to ask the brand first.
How much floor space does a UK single mattress need?
We suggest allowing at least 2.1m x 2.8m of floor space for a UK single, which gives you room to walk around the bed and open drawers or a wardrobe. That makes it a realistic fit for box rooms, loft conversions with a narrow usable footprint, and spare rooms that also hold a desk.
Can two Arthur Sleep Cool Comfort singles work in a shared or guest room?
Often, yes. Two UK singles side by side take up 180cm of width plus whatever gap you leave, so measure your room against that before committing. For siblings sharing, two singles with a walkway between them usually works better than one larger bed, and each child gets independent pocket springs.
Is a single big enough for an adult on this mattress?
For one adult, usually. At 90cm wide and 190cm long it's the standard UK one-person size, and the independent pocket springs support you without the wobble of an open coil. Taller adults should note the 190cm length; if you're pushing past 6ft, the UK king is 10cm longer as well as 60cm wider.