Silentnight Memory Cool 1000 Mattress
Mattress
Silentnight Memory Cool 1000 Mattress
Size
Firmness
Construction
Depth (cm)
29
Layers
2
Layer Details
- Memory Cool™. A graphite-infused memory foam that moulds to your body to relieve pressure while actively moving heat away from you. Silentnight says this creates a sleep environment 15% cooler than standard memory foam, which means less of the clammy feeling memory foam is known for.
- Mirapocket® springs. 1000 pocket springs, each held in its own fabric pocket so it responds to your movement independently. In practice that means zoned support along your body and less motion transfer across the bed.
Layer details from silentnight.co.uk product page, September 2026.
- Real stretching room for one: At 30cm wider than the UK single, you can shift position, spread out or star-fish without an elbow hanging over the edge.
- Fits rooms a double crowds: Being 15cm narrower than the UK double often decides whether a wardrobe still opens or a door still clears in a box room or studio.
- Cooler foam for smaller rooms: The graphite-infused Memory Cool layer draws heat away from you, which matters in compact bedrooms and loft spaces that warm up quickly.
- Copes with occasional sharing: The 1000 Mirapocket springs respond to movement individually, so when a partner or guest shares for the odd night, you feel less of their fidgeting.
- Standard 4ft bedding: The small double is an established UK size, so fitted sheets and frames are easy to find, and a standard double duvet covers it well.
This size suits you if...
You sleep alone most nights and have felt cramped in a UK single, perhaps a teenager who has outgrown one but whose room can't spare much floor space. Or your bedroom, loft conversion or studio simply won't take a UK double without blocking a door or losing walking room. It also suits a guest room where couples stay occasionally rather than nightly.
Consider another size if...
You share the bed every night and the room can take something bigger. Two adults on 120cm of width will feel squeezed long term, so we'd recommend the UK double instead, allowing at least 2.6m x 2.8m of room.
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Is a small double Memory Cool 1000 big enough for a couple?
For occasional nights, yes. The pocket springs limit motion transfer, so sharing for a weekend stay is fine, and that makes this size a sensible guest room choice. For two adults every night, 120cm of width is a squeeze, and the UK double, at 15cm wider, is the better long-term buy.
What room size do I need for the Silentnight Memory Cool 1000 small double?
We suggest a room of at least 2.4m x 2.8m. That leaves enough space to walk around the bed and open drawers or wardrobe doors. If your room comfortably exceeds 2.6m x 2.8m, a UK double becomes an option, so measure before you settle on the small double.
Is the small double a good upgrade from a single for a teenager?
It's the natural step. The UK small double is 30cm wider than the UK single but exactly the same length, so the bed grows sideways rather than eating into the room's depth. A teenager gets proper room to sprawl, and the Medium/Firm feel offers steady support for a growing back sleeper.
Will the small double fit in a loft conversion or box room?
Usually, yes, and that's much of its appeal. At 120cm wide it's 15cm narrower than the UK double, which can be the difference between having standing room beside the bed under a sloped ceiling and not. Check your usable floor area against our suggested minimum of 2.4m x 2.8m first.
How do the small double and double compare in this mattress?
Both are 190cm long, so the only difference is width: the UK small double is 15cm narrower than the UK double. The construction, feel and 29cm depth are identical. Prices differ between the two, so compare the retailers listed on this page, which update as retailers change them.