Jay-Be Ryze Comfort Single Mattress
The Jay-Be Ryze Comfort is a medium-feel rolled mattress that pairs an open coil spring core with Advance e-Fibre comfort layers, which means you get springy, evenly spread support with a breathable top rather than the sink-in feel of foam.
- Breathable fibres keep you cooler
- Even support across the surface
- 10-year guarantee
£199
Get the lowest price we've found
Save with the previous model
Some retailers still sell the earlier version of this mattress for less than the current model's best price.
Jay-Be Ryze Comfort Mattress
More available sizes
Mattress details
Mattress
Jay-Be Ryze Comfort Mattress
Size
Firmness
Medium
Construction
Rolled
Open Coil Spring
Depth (cm)
21
Layers
2
Layer Details
Advance e-Fibre™
These comfort layers have a breathable cell structure that improves air flow and helps moisture evaporate, which means a cooler, drier sleep surface through the night. It's a fibre-based alternative to foam, so hot sleepers tend to get on with it.
Open coil spring core
A deep sprung core, with 325 springs in the king size, distributes support evenly across the mattress. Open coil gives a gently springy, traditional feel rather than the contouring you'd get from pocket springs.
Layer details from furniturevillage.co.uk product page, September 2026.
Key benefits
- Slim enough for raised frames: The 21cm depth sits comfortably within the guard rails of most bunk, cabin and mid-sleeper frames, where a taller mattress can leave the rail dangerously low.
- Breathable top for warm sleepers: The Advance e-Fibre layers let air move through the surface, which means a teenager who runs hot is less likely to wake up sweaty than on dense foam.
- A sensible spare room choice: In a study that doubles as guest space, the 90cm width leaves the desk and shelving where they are rather than forcing a rearrange.
- Movement matters less solo: Open coil springs transfer motion more than pocket springs, but with one sleeper on a UK single there's no partner to disturb, so the simpler core costs you little.
- Even, springy support: The sprung open coil core spreads weight evenly across the surface, giving a gently bouncy, traditional feel rather than a sink-in one, which many children and teens prefer.
This size suits you if...
You're buying for a child's or teenager's room where the bed shares floor space with a wardrobe, desk and toy storage, or you're furnishing a spare room or student flat and want a straightforward sprung mattress in the standard one-person size. It also suits a bunk or mid sleeper, where the slim 21cm depth keeps the guard rail at a safe height.
Consider another size if...
You're an adult who sleeps alone but finds 90cm a little restrictive, or you tend to sprawl. We'd recommend the UK small double instead: it's 30cm wider, the same length, and needs a room of at least 2.4m x 2.8m.
Similar Mattresses in This Price Range
Did you know? On Mattress Unboxed we have over 1,000 different mattresses to suit all types of sleepers. View all mattresses.
FAQ's
Will the Jay-Be Ryze Comfort UK single fit a bunk bed?
It's a good candidate. Bunk and mid-sleeper frames are made for the UK single's 90 x 190cm footprint, and the 21cm depth is slim enough to keep the guard rail effective on most frames. Do check your frame's stated maximum mattress depth before ordering, as a few cabin beds specify shallower limits.
What size is the Jay-Be Ryze Comfort in a UK single?
It measures 90 x 190cm, or 3ft x 6ft 3in, with a depth of 21cm. That's the standard UK one-person size, so ordinary single fitted sheets and a single duvet (135 x 200cm) fit without any hunting for unusual bedding.
How much floor space does a UK single mattress need?
We suggest allowing at least 2.1m x 2.8m of floor space. That leaves room to walk alongside the bed and open a wardrobe, which matters in a child's room where the bed competes with a desk and toy storage. Most box rooms and loft conversions with a narrow footprint can manage it.
Is a UK single big enough for an adult?
For many solo adults, yes. At 90cm wide and 190cm long it suits most people who sleep fairly still, and the medium open coil feel of the Ryze Comfort gives even support across that width. If you move around a lot in the night, the UK small double gives you 30cm more width at the same length.
Is the Ryze Comfort UK single a good guest room mattress?
It suits guest rooms well. The single footprint lets you fit two beds plus a walkway in a modest spare room, something a double rules out, and the breathable e-Fibre top means occasional guests won't overheat. Compare the retailers listed on this page for the current price, as it changes.