Relyon Hand Crafted Sublime Mattress
Mattress
Relyon Hand Crafted Sublime Mattress
Size
Firmness
Construction
Depth (cm)
Layers
2
Layer Details
- Pocket Springs. The first layer contains individually moving springs, each nested in its own fabric pocket, which means every spring compresses on its own rather than pulling its neighbours with it. You feel this as support that follows the shape of your body and less disturbance from a partner's movement.
- Pocket Springs. A second layer of pocket springs sits as part of the twin-layer design, adding a further level of independent response. The retailer's listing gives a total of 2400 springs across the mattress but doesn't specify how they're split between the two layers.
Layer details from mattressman.co.uk product page, September 2026.
- Fits a compact room: At 90cm wide it leaves floor space free, so we suggest as little as 2.1m x 2.8m of room to work with.
- All 2400 springs to yourself: The listing gives 2400 individually pocketed springs, which means close contouring under one sleeper with no compromise for a partner.
- A serious upgrade for a teenager: A handcrafted pocket sprung mattress suits a teen who has outgrown the basic foam most single frames arrive with.
- Guest room quality: Visitors get proper twin-layer support rather than the thin sprung mattress spare rooms usually make do with.
- 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.
This size suits you if...
You sleep alone and want the full quality of a handcrafted pocket sprung mattress without paying for width you'd never use, you're upgrading a teenager's room where the bed shares space with a desk and wardrobe, or you're fitting out a spare room that doubles as an office and want guests to sleep well on the one bed that fits.
Consider another size if...
You're an adult who shares the bed even occasionally, since 90cm is a one-person width. We'd recommend the UK double instead, which is 45cm wider, the same length, gives 67.5cm each for two sharing, and needs a room of at least 2.6m x 2.8m.
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What size is the Relyon Hand Crafted Sublime UK single?
It measures 90 x 190cm, which is 3ft x 6ft 3in. That's the standard UK single, so it fits ordinary single bed frames, and standard single sheets and a 135 x 200cm single duvet will fit without adjustment.
What room size do I need for a UK single mattress?
We suggest allowing at least 2.1m x 2.8m of floor space. That leaves room to walk around the bed and open drawers or a wardrobe, which matters in a child's room where the bed competes with toy storage and a desk, or under the slope of a loft conversion.
Will the UK single fit a bunk or mid sleeper frame?
The 90 x 190cm footprint matches standard bunk and mid sleeper frames. Relyon doesn't publish a depth for this mattress on the listing we sourced, and raised frames often set a maximum mattress depth for the guard rail to work, so check your frame's limit with the retailer before ordering.
Is a single big enough for an adult to sleep on every night?
For one adult, yes. At 90cm wide you get more space to yourself than each person gets in a shared UK king, which allows 75cm per sleeper. Restless sleepers who sprawl may feel the edges, in which case the UK small double is 30cm wider and the same length.
Should I buy the UK single or size up to the UK small double?
If the room allows it, the UK small double gives a solo adult noticeably more width: it's 30cm wider than the UK single and the same length, and we suggest a room of at least 2.4m x 2.8m for it. For a child, a guest bed or a tight footprint, the UK single is the sensible choice.