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.
- Fits a busy child's room: At 3ft wide, it leaves space for a wardrobe, desk and toy storage in a bedroom where every centimetre is contested.
- Cooling foam for warm-sleeping teens: The graphite-infused Memory Cool layer draws heat away from the body, which matters in small rooms that hold warmth overnight.
- Grows with them: The Medium/Firm feel gives stable, supportive comfort from childhood through the teenage years, rather than a soft surface they sink into and outgrow.
- Practical for spare rooms and studies: A UK single tucks against a wall in a room that doubles as an office, keeping the desk and walkway clear.
- Cheap, easy bedding: Standard single sheets and a single duvet fit, and they are the most widely stocked and affordable bedding of any UK size.
This size suits you if...
You're buying for a child or teenager whose room also needs to hold a desk and storage, you're furnishing a spare room or study that occasionally hosts guests, or you're a student or first-time renter fitting out a compact bedroom where a bigger mattress simply wouldn't leave walking space.
Consider another size if...
You're an adult sharing the bed, or you find 90cm of width restless and cramped on your own. The UK small double is 30cm wider at the same length, and we suggest allowing at least 2.4m x 2.8m for it.
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What are the dimensions of the Silentnight Memory Cool 1000 UK single?
The UK single measures 90 x 190cm, or 3ft x 6ft 3in. That is the standard one-person size in the UK, so standard single fitted sheets and a single duvet will fit without hunting for special bedding.
Will the UK single Memory Cool 1000 fit a bunk or mid sleeper frame?
The footprint matches standard bunk and mid-sleeper frames, but the depth needs checking. At 29cm this is deeper than many raised frames allow, and a tall mattress can sit above the safety rail on a top bunk. Check your frame's maximum mattress depth before buying, especially for children's beds.
Is a UK single Memory Cool 1000 suitable for a teenager?
Yes, for most. The Medium/Firm feel and pocket springs give supportive comfort through growth spurts, and the cooling foam helps warm sleepers. Lighter side sleepers may find it slightly firm on the shoulders, so a very light teen who sleeps on their side is the main exception.
What room size do I need for a UK single mattress?
We suggest allowing at least 2.1m x 2.8m of floor space, which covers the mattress plus room to move around it. That makes the UK single a realistic fit for box rooms, loft conversions with a narrow usable strip, and children's bedrooms already holding a desk and wardrobe.
Should I get the UK single or the UK double for a spare room?
If the room doubles as an office, the UK single usually wins: the UK double is 45cm wider, the same length, and we suggest at least 2.6m x 2.8m for it. Couples staying regularly would need the UK double, but for occasional solo guests the UK single keeps the room usable day to day.