Relyon Isabelle 2000 Pocket Small Double 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
£729
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.
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
- Room to sprawl on your own: At 30cm wider than a UK single and the same length, it lets a solo sleeper change position on the firm surface without an arm ending up over the side.
- Keeps a small room workable: Being 15cm narrower than a UK double can be the margin that lets a box room door open fully or leaves space for a bedside table.
- A sensible step up from a single: A teenager who has outgrown a UK single gets a noticeably wider bed, and 4ft frames and bedding are easy to find on the high street.
- Copes with the occasional couple: Each pocket spring moves on its own, so a guest turning over is less likely to wake their partner, which matters more when two people share 120cm.
- Firm, with a little give on top: The mini pocket spring layer contours slightly before the main unit takes over, so a solo sleeper who likes firm support still gets some cushioning at the shoulders.
This size suits you if...
you sleep alone and like room to stretch out, your bedroom is too tight for a UK double, or you want a guest bed that a visiting couple can use for the odd weekend, and your room meets our suggested minimum of 2.4m x 2.8m.
Consider another size if...
you share the bed every night, or your room is under our suggested 2.4m x 2.8m. For nightly sharing we'd recommend the UK double (at least 2.6m x 2.8m); for a smaller room, the UK single (at least 2.1m 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
What size room do I need for a Relyon Isabelle 2000 small double?
We suggest allowing at least 2.4m x 2.8m for the UK small double. That leaves space to walk round the bed and make it without squeezing past furniture. If your room is tighter, the UK single needs at least 2.1m x 2.8m, and it keeps the same 190cm length.
Is the Relyon Isabelle 2000 small double a good upgrade for a teenager?
It suits a teenager who has outgrown a UK single well. The UK small double is 30cm wider and the same length, so the room loses a little floor rather than a lot. Bear in mind this is a firm mattress: a lighter teenager who sleeps on their side may find it a touch unforgiving at the hips.
Do the edges of the Isabelle 2000 matter more on a small double?
They can. One owner review mentions the springs feeling weak at the edges, and on a 120cm wide bed you spend more of the night nearer the sides, especially when two people share. If you often sit on the edge to dress, the UK double gives you a little more width to work with.
Should I get the Relyon Isabelle 2000 in a small double or a double?
Choose the UK small double if you sleep alone or your room is compact; it is 15cm narrower and the same length. If two of you sleep in it every night, the UK double gives 67.5cm each and needs at least 2.6m x 2.8m, against 2.4m x 2.8m for the UK small double.
Is a Relyon Isabelle 2000 small double long enough for a tall adult?
At 190cm, the UK small double is the same length as the UK single and UK double. If you are tall and your feet reach the end, the UK king is 10cm longer, although it is also 30cm wider and we suggest at least 2.7m x 2.9m for it.