Jay-Be Ryze Memory King Size Mattress
The Jay-Be Ryze Memory Mattress is a medium-feel hybrid that pairs an open coil spring core with Jay-Be's Memory e-Fibre™, a material designed to contour like memory foam while staying completely foam-free.
- Memory-style pressure relief, no foam
- Breathes better than memory foam
- Medium feel suits most sleepers
£319
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Jay-Be Ryze Memory Mattress
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Mattress details
Mattress
Jay-Be Ryze Memory Mattress
Size
Firmness
Medium
Construction
Foam
Hybrid
Rolled
Memory Foam
Open Coil Spring
Depth (cm)
22
Layers
4
Layer Details
Cover
A simple polyester cover. The fabric is OEKO-TEX® certified, so it is free from harmful chemicals.
Advance e-Fibre™
An extra-soft layer of Advance e-Fibre™, which means a luxurious, cushioned feel as soon as you lie down.
Memory e-Fibre™
This layer adapts to the shape and weight of your body, giving memory foam-style pressure relief. It is 100% foam-free with a breathable cell structure, which means better air flow than traditional memory foam.
Spring core
A deep sprung open coil core, with 325 springs in the king size, for evenly distributed support. Spring counts for other sizes are not stated.
Layer details from furniturevillage.co.uk product page, September 2026.
Key benefits
- 75cm each for two people sharing: Each of you gets your own clear stretch of mattress, so a partner shifting position or propping pillows at 3am intrudes far less on your side.
- Extra length for taller sleepers: At 200cm long, the UK king adds 10cm over the UK double, so anyone approaching six foot stops finding their feet at the edge.
- 325 springs across the king: Jay-Be states the spring count for this size specifically, so the open coil core spreads support evenly across the wider 150cm surface.
- Cooler sharing at scale: Two bodies generate more heat than one, and the breathable, foam-free e-Fibre™ layers let that warmth escape more easily than solid memory foam would.
- An affordable route to a bigger bed: Sizing up usually means spending up, and this mattress sits at the budget end of hybrids, which keeps the upgrade within reach.
This size suits you if...
You share the bed every night and a double has started to feel cramped, with elbows and duvet disputes waking you both. Or one of you keeps different hours, leaving early while the other sleeps on, and you want enough width that getting up causes less disturbance. It also suits couples where one partner is over six foot, because the 200cm length is as much of an upgrade as the width.
Consider another size if...
Your bedroom falls short of the 2.7m x 2.9m we suggest for a UK king, which is common in newer builds once wardrobes go in. We'd recommend the UK double instead; allow at least 2.6m x 2.8m for that size.
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FAQ's
What are the dimensions of the Jay-Be Ryze in a UK king?
The UK king measures 150 x 200cm, or 5ft x 6ft 6in. It is 22cm deep, so standard king fitted sheets should be fine. That footprint makes it 15cm wider and 10cm longer than the UK double, a gap you notice most when two of you are sharing.
Will a UK king Jay-Be Ryze fit in my bedroom?
We suggest a room of at least 2.7m x 2.9m for a UK king, which leaves space to walk round the bed and open drawers. Measure with wardrobes and bedside tables in place, because a room that looked generous empty can feel tight once furniture is in. If it falls short, the UK double needs 2.6m x 2.8m.
Is the UK king Jay-Be Ryze long enough for tall sleepers?
It should be. At 200cm, the UK king is 10cm longer than the UK single, small double and double, all of which are 190cm. If one of you is around or over six foot, that extra length is often the real reason to size up, more so than the width.
How much space do two people get on this size?
You get 75cm each for two people sharing, enough for each sleeper to settle into the Memory e-Fibre™ without meeting in the middle. One caveat: this is an open coil core rather than pocket springs, so some movement does carry across. The extra width offsets that, but restless pairs who are sensitive to motion should weigh it up.
Should I choose the Jay-Be Ryze in a UK king or a UK double?
The UK king is 15cm wider and 10cm longer than the UK double, and the king is the largest size this mattress comes in. If you share nightly, keep different schedules, or a dog routinely claims part of the bed, the king is the better buy. The prices shown on this page update as retailers change them, so compare before deciding.