Jay-Be Ryze Deep Quilted Sprung e-pocket Single Mattress in a Box
The Jay-Be Ryze is a medium firmness sprung mattress in a box, available in four UK sizes from Single to King.
- Breathable fill for hot sleepers
- Recycled, vegan-friendly materials
- 10-year guarantee
£186.69
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Jay-Be Ryze Deep Quilted Sprung e-pocket Mattress in a Box
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Mattress details
Mattress
Jay-Be Ryze Deep Quilted Sprung e-pocket Mattress in a Box
Size
Firmness
Medium
Construction
Foam
Pocket Spring
Rolled
Memory Foam
Eco-Friendly
Depth (cm)
21
Layers
3
Layer Details
Cover/Fabric
A deep-quilted knitted fabric that's OEKO-TEX certified, which means it has been tested and shown to be free from harmful chemicals. The quilting adds a soft, cushioned surface feel from the moment you lie down.
Comfort Layer
Extra-soft Advance e-Fibre with an open-cell structure that encourages airflow and helps moisture evaporate, so heat is less likely to build up around you. It's made from recycled PET bottles, with a minimum of 70% recycled content.
Support Core
A deep sprung core that provides evenly distributed support across the mattress. Springs respond to pressure more quickly than foam, giving a slightly bouncier, more traditional feel.
Layer details from jaybe.com product page, September 2026.
Key benefits
- A safe depth for raised frames: At 21cm, the UK single sits comfortably within the depth limits of most bunk beds and mid sleepers, where thicker mattresses can raise a child above the guard rail.
- Fits the tightest rooms: At 90cm wide, it leaves floor space free for a desk, wardrobe and toy storage; allow at least 2.1m x 2.8m and most box rooms qualify.
- Cool for warm little sleepers: The foam-free build with breathable Advance e-Fibre lets air move through the mattress, which means less overheating for children who run hot at night.
- Hypoallergenic for children's rooms: The fillings are hypoallergenic with a natural salt-based fire retardant rather than a chemical treatment, a reassuring combination for a child's or teen's bed.
- Cheap, easy bedding: Standard single sheets and a 135 x 200cm single duvet fit, the most widely stocked and lowest-cost bedding of any UK size.
- Practical for guest and student setups: Arrives boxed, so it goes up narrow stairs to a loft room, student flat or spare room without a struggle.
This size suits you if...
You're buying for a child's or teenager's room where the bed shares space with a desk and storage, you need a mattress that meets the depth limit on a bunk or mid sleeper, or you're kitting out a spare room or student flat where the frame is provided and a single is the sensible fit.
Consider another size if...
You're an adult who shares the bed, or a restless solo sleeper who wants 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 for it.
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FAQ's
Will the Jay-Be Ryze UK single fit a bunk bed?
Yes, in most cases. At 90 x 190cm it matches the standard UK bunk and mid-sleeper footprint, and its 21cm depth sits within the limits most raised frames specify so the guard rail still does its job. Check your frame's maximum mattress depth before ordering, as a few cabin beds allow less.
Is the Jay-Be Ryze single a good mattress for a child?
It's well suited to children and teens. The fillings are hypoallergenic, the fabric is OEKO-TEX certified, and the fire retardant is a natural salt-based treatment rather than a chemical one. The medium firmness and springy, foam-free feel suits growing sleepers, and the breathable e-Fibre helps children who overheat at night.
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 alongside the bed and open drawers or a wardrobe. At 90cm wide, the UK single is the easiest size to place in a box room, a loft conversion with a narrow flat ceiling, or a spare room that doubles as an office.
Is the Jay-Be Ryze UK single big enough for an adult?
For one adult, yes, though only just for taller or broader sleepers. It's the standard one-person size at 90 x 190cm, fine for a guest bed or first flat. If you sleep in it every night and like to spread out, the UK small double is 30cm wider and the same length, and needs a room of at least 2.4m x 2.8m.
What bedding fits the Jay-Be Ryze single?
Standard UK single bedding fits: single fitted sheets sized for a 90 x 190cm mattress and a 135 x 200cm single duvet. Because the mattress is a slimmer 21cm deep, regular-depth fitted sheets tuck in easily, with no need to hunt for extra-deep versions.