Relyon Isabelle 2000 Pocket King Size Mattress
The Relyon Isabelle 2000 Pocket is a firm pocket spring mattress, handcrafted in the UK, with 2,000 pocket springs topped by a layer of mini pocket springs.
- Mini springs add pressure relief
- Minimises partner disturbance
- Wool & fibres help you sleep cooler
£779
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Relyon Isabelle 2000 Pocket Mattress
More available sizes
Mattress details
Mattress
Relyon Isabelle 2000 Pocket Mattress
Size
Firmness
Firm
Construction
Pocket Spring
Wool
Natural
Depth (cm)
29
Layers
5
Layer Details
Damask cover
A damask cover, which is a finely woven and durable fabric, forms the sleep surface. It is soft to the touch.
Wool
A layer of natural wool sits beneath the cover for cosy, cushioned comfort. Wool also helps regulate temperature naturally.
Soft White Fibres
Soft white fibres increase airflow through the mattress. This works alongside the wool to keep the sleeping temperature steadier.
Mini Pocket Springs
Small, individually cased springs sit above the main spring unit. They add a gentle, contouring layer of pressure relief before you reach the firmer support below.
Pocket Springs
The main support comes from 2,000 individual springs encased in cloth pockets. Each spring moves independently, which means support is distributed to each part of your body and a restless partner is less likely to wake you.
Layer details from mattressonline.co.uk product page, September 2026.
Key benefits
- 75cm each for two sharing: That's 7.5cm more per person than the UK double, enough that you can change position without negotiating for space.
- Springs that move independently, spread further apart: With 2,000 individually cased springs across a wider bed, one of you getting up early is far less likely to wake the other.
- 200cm of length for taller sleepers: The UK king is 10cm longer than the UK double, which means anyone approaching 6ft finally gets their feet on the mattress.
- Firm support across a wider surface: A firm pocket spring build stays consistent edge to middle, so neither sleeper ends up rolling towards a dip.
- Wool and fibre layers over a bigger area: The natural fillings encourage airflow, and two people sharing a wider bed generate less trapped heat between them.
This size suits you if...
You share the bed every night and a double has started to feel like a compromise, especially if one of you keeps waking the other by getting up first. It also suits couples where one partner is tall, since the extra 10cm of length matters as much as the width. Your room should allow at least 2.7m x 2.9m by our reckoning.
Consider another size if...
Your bedroom falls short of the 2.7m x 2.9m we suggest, or you sleep alone. In either case the UK double would suit you better, needing only 2.6m x 2.8m of floor space.
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FAQ's
Is the Relyon Isabelle 2000 in a UK king big enough for a couple?
Comfortably, for most. You each get 75cm of width, which is the same as a UK single per person, and the 2,000 pocket springs respond to each of you separately. If one of you is restless or works odd hours, that independence is where the UK king improves on a double most noticeably.
Will a king size Relyon Isabelle 2000 fit in my bedroom?
We suggest a room of at least 2.7m x 2.9m, with around 3.2m x 3.2m feeling genuinely comfortable. That's our guidance rather than Relyon's. New build master bedrooms can be tighter than they first appear once wardrobes go in, so measure the usable floor, then the walking space around the bed frame.
Is the UK king Isabelle 2000 long enough for someone over 6ft?
At 200cm, the UK king is 10cm longer than a UK double, and for taller sleepers that length is often the real upgrade. Someone around 6ft gets clear space at head and foot, and the firm pocket spring support runs the full length rather than softening towards the ends.
Should I get the Isabelle 2000 in a king or a super king?
The UK king gives 75cm each, the UK super king 90cm each, and both are 200cm long. If a dog routinely claims part of the bed, or you simply want the maximum space, the extra width may justify sizing up, but allow at least 3m x 2.9m of room for the UK super king.
Where can I buy the Relyon Isabelle 2000 in a UK king?
Compare the retailers listed on this page; the prices shown here are updated as retailers change them, so it's worth checking back if you're not buying immediately. Availability for a UK king can differ from the smaller sizes, so confirm stock on the retailer's own page before you order.