Silentnight UltraGel 1000 pocket Mattress
Mattress
Silentnight UltraGel 1000 pocket Mattress
Size
Firmness
Medium Firm
Construction
Depth (cm)
28
Layers
2
Layer Details
- UltraGel comfort layer. A gel infused foam layer that responds to your movements, which means you get contouring without the slow, sunken feel some foams have. Silentnight says it's 5x more breathable than standard memory foam, so it should run cooler through the night.
- Mirapocket springs. 1000 Mirapocket springs, each held in its own fabric pocket so they respond independently to your body. In practice that means zoned support, better spinal alignment and less motion transfer across the bed.
Layer details from silentnight.co.uk product page, September 2026.
- Real width for one sleeper: At 120cm across, a solo adult gets genuine room to shift position through the night, which the gel infused foam layer accommodates without a slow, sunken feel.
- Fits rooms a double cannot: Being 15cm narrower than the UK double, this size often decides whether a box room or studio keeps its walkway and wardrobe access.
- Cooler in a snug room: Smaller bedrooms tend to run warmer, so the UltraGel layer's breathability, stated by Silentnight as 5x that of standard memory foam, is a practical match here.
- Copes with occasional sharing: The 1000 Mirapocket springs respond independently, so a guest room small double handles the odd couple stay without one person's movement waking the other.
- Standard 4ft sizing: A small double is a standard UK size, so frames and fitted sheets are easy to find, and a standard double duvet covers it comfortably.
This size suits you if...
You sleep alone and have outgrown a UK single but your room cannot spare the width a UK double needs, you're furnishing a guest room where couples stay occasionally rather than nightly, or you're kitting out a small second bedroom in a rental or holiday let. The medium firm feel suits most back and combination sleepers, so it works well for the mixed guests a spare room sees.
Consider another size if...
You share the bed every night, or your room comfortably clears 2.6m x 2.8m. In that case we'd recommend the UK double instead, which is 15cm wider and the same length, giving a couple a far easier night.
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Is a small double big enough for one adult on the Silentnight UltraGel 1000?
Comfortably. At 120 x 190cm you get 30cm more width than the UK single at the same length, which is plenty for an adult who likes to stretch out or change position. The medium firm feel and independent Mirapocket springs mean the surface stays supportive wherever on that width you settle.
Can a couple sleep on the Silentnight UltraGel 1000 small double?
For occasional nights, yes. The 1000 pocket springs move independently, so a partner shifting about disturbs you less than on an open coil bed. For every night sharing, though, 120cm is a squeeze for two adults, and we'd point couples towards the UK double, which is 15cm wider.
What room size do I need for a small double mattress?
We suggest allowing at least 2.4m x 2.8m for a UK small double, which leaves enough room to walk round the bed and open drawers. That is our own guidance rather than Silentnight's. If your room clears 2.6m x 2.8m, the UK double becomes an option worth weighing up.
Is the small double a good guest room size for this mattress?
It's one of the better choices. The 4ft width fits compact spare rooms while still sleeping the occasional visiting couple, and the medium firm feel suits the widest spread of guests, although lightweight side sleepers may find it slightly firm. Standard small double sheets and a normal double duvet keep bedding simple.
Where can I buy the Silentnight UltraGel 1000 in a small double?
Compare the retailers listed on this page. Stock and pricing for the UK small double change regularly, and the prices shown here are updated as retailers change them, so the live table is a more reliable guide than any figure we could print. It's a standard UK size, so availability tends to be steady.