Silentnight Memory Cool 1000 Pocket Mattress
Mattress
Silentnight Memory Cool 1000 Pocket 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, which means less pushback at your hips and shoulders. The graphite actively transfers heat away from you, and Silentnight claims it creates a sleep environment 15% cooler than standard memory foam.
- Mirapocket® springs. 1000 Mirapocket® springs, each held in its own individual pocket so they respond to every movement independently. In practice that means zoned support where you need it and less of the whole-bed wobble you get with open-coil mattresses.
Layer details from silentnight.co.uk product page, September 2026.
- Fits a compact room: 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.
- Cooling foam for warm sleepers: The graphite-infused Memory Cool layer draws heat away, which matters in a child's small room or a loft conversion where summer temperatures climb.
- Support that lasts through growth spurts: The medium/firm feel and 1000 individual Mirapocket springs give a teenager proper support rather than the soft, saggy surface cheaper single mattresses often have.
- Guest ready without fuss: Standard single bedding is the cheapest and easiest to find, so a spare room or office guest bed stays simple to dress and launder.
- Pairs up for shared rooms: Two UK singles plus a walkway suit siblings sharing, and the independent pocket springs mean each child gets support matched to their own weight.
This size suits you if...
You're buying for a child's or teenager's room and want a mattress that supports them properly for years, you're furnishing a spare room or study that doubles as guest space, or you sleep alone in a compact bedroom and would rather keep the floor clear than fill it with a wider bed.
Consider another size if...
You're an adult sharing the bed, or you simply want more width than 90cm to stretch out in. We'd recommend the UK double instead, and we suggest allowing at least 2.6m x 2.8m of floor space for it.
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.
Is the Silentnight Memory Cool 1000 in a UK single good for a child?
Yes, with one caveat. The medium/firm feel and 1000 pocket springs give a child or teenager firm, even support as they grow, and the UK single is the standard children's bed size. Very light children may find the surface a little firm at first, though the memory foam layer softens the initial feel.
Will the UK single Silentnight Memory Cool 1000 fit a bunk or mid sleeper frame?
The 90 x 190cm footprint matches standard UK bunk and mid sleeper frames. The one thing to check is depth: this mattress is 29cm deep, which is taller than many bunks allow, since guard rails need to sit well above the mattress surface. Check your frame's maximum mattress depth before buying.
What room size do I need for a UK single mattress?
We suggest allowing at least 2.1m x 2.8m of floor space for a UK single. That leaves room to walk around the bed and open drawers or wardrobe doors. In a child's room competing with a desk and toy storage, or a spare room that doubles as an office, the 90cm width is the main reason to choose this size.
Is a UK single big enough for an adult?
For one adult, usually yes. At 90 x 190cm you get the full width to yourself, and the pocket springs support adult weight well at this medium/firm feel. Taller sleepers should note the 190cm length; if you're over six foot you may prefer the UK king, which is 10cm longer than the UK single.
Where can I compare prices for this single mattress?
Use the price table on this page. The prices shown here are updated as retailers change them, so it's the quickest way to see who currently stocks the Silentnight Memory Cool 1000 in a UK single and what each is charging today, rather than checking each retailer's site in turn.