Relyon Isabelle 2000 Pocket Mattress
Mattress
Relyon Isabelle 2000 Pocket Mattress
Size
Firmness
Firm
Construction
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.
- Fits compact rooms: At 90cm wide it leaves floor space for a desk, wardrobe and toy storage, and we suggest a room of at least 2.1m x 2.8m.
- Firm support for growing sleepers: The 2,000 pocket springs give firm, even support, which suits teenagers who need a mattress to hold its shape through years of use.
- A guest bed that feels substantial: The mini pocket spring layer adds contouring above the firm base, so occasional guests get pressure relief rather than a plank.
- Cool for smaller rooms: Wool and soft white fibres encourage airflow, useful in a box room or loft space where a single bed often ends up.
- Cheap, easy bedding: Standard single sheets and a 135 x 200cm single duvet fit, and both are the most widely stocked bedding of any UK size.
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, and you want a firm mattress that will last through the growing years. It also suits a solo adult in a compact room or first flat, or a spare room that doubles as an office, where a 90cm footprint keeps the rest of the floor usable.
Consider another size if...
You share the bed, or you find a UK single leaves you close to the edge when you stretch out. We'd recommend the UK double instead: it gives 67.5cm each for two sharing, and we suggest a room of at least 2.6m x 2.8m for it.
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Will the Relyon Isabelle 2000 UK single fit a bunk bed or mid sleeper?
Be careful here. At 29cm deep, this is a substantial mattress, and on a top bunk or raised frame it may sit too high against the guard rail to be safe. Check your frame's maximum mattress depth before buying; many bunks specify something considerably shallower than 29cm.
Is the Relyon Isabelle 2000 in a single too firm for a child?
It depends on the child. Firm support is generally good for growing bodies, and the mini pocket spring layer softens the surface a little. That said, a very lightweight side sleeper may find it presses on hips and shoulders rather than letting them settle in, so a lighter child might prefer something with more give.
What room size do I need for a UK single mattress like this?
We suggest allowing at least 2.1m x 2.8m of floor space for a UK single, which is our own guidance rather than Relyon's. The mattress itself is 90 x 190cm, so in most box rooms, lofts and children's bedrooms you'll still have room for a wardrobe, a desk and a clear walkway.
Should I buy the UK single or the UK small double for a teenager?
The UK single is 30cm narrower than the UK small double, and the two are the same length. If the room allows it, the extra width is a genuine comfort upgrade for a taller teen, but we suggest at least 2.4m x 2.8m of floor space for the UK small double before you commit.
Where can I buy the Relyon Isabelle 2000 in a UK single?
Compare the retailers listed on this page. The prices shown here are updated as retailers change them, so the table reflects what's available for the UK single right now, which can differ from stock and pricing on the larger sizes of this mattress.