Silentnight British Wool 3000 Mattress
Mattress
Silentnight British Wool 3000 Mattress
Size
Firmness
Construction
Depth (cm)
33
Layers
4
Layer Details
- Tencel™ Lyocell sleep surface. A silky, soft-touch fabric woven to allow airflow and move moisture away from you, which means the surface feels naturally cool. It's a small detail you'll appreciate on warm nights.
- Platinum comfort layer. Silentnight states this is 10x more breathable than memory foam with the same amount of pressure relief. In practice that means a cocooning, cushioned feel without the trapped heat foam can bring.
- British Wool Comfort Layer. Wool from Cheviot sheep gives a flexible, breathable layer with natural body and bounce. It's part of what keeps this mattress foam free while still feeling comfortable and supportive.
- Mirapocket® springs and mini pocket springs. 2000 Mirapocket springs adjust to your movements through the night, so support follows you as you change position. A further 1000 mini pocket springs sit alongside for added comfort and increased breathability.
Layer details from silentnight.co.uk product page, September 2026.
- The standard couples' footprint: At 135 x 190cm, the UK double is the size most British bedrooms were designed around, so it fits where a UK king would crowd the room.
- 67.5cm each for two sharing: Two people get 67.5cm of width apiece, which is comfortable for most couples, particularly on a surface this cushioned.
- Cooler when you share: Two bodies mean more heat, and the wool and Tencel surface breathes far better than foam, so shared nights feel less clammy.
- Room for tables both sides: Allow at least 2.6m x 2.8m and most rooms will still take bedside tables on either side, which matters when two people need lamps and charging space.
- Springs that work independently: The 2000 Mirapocket springs respond to each sleeper separately, so one person turning over is less likely to disturb the other.
This size suits you if...
You share the bed every night and your bedroom is a typical UK size, where a UK king would leave you squeezing past the footboard. It also suits you if you sleep alone but want space to stretch out, or regularly give up a corner to a pet, and you like a soft, cushioned surface with natural materials rather than a firm one.
Consider another size if...
You and your partner both like room to sprawl and your bedroom measures at least 2.7m x 2.9m. We'd recommend the UK king instead: it's 15cm wider and 10cm longer, and this mattress comes in both.
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 British Wool 3000 in a UK double big enough for a couple?
For most couples, yes. The UK double gives 67.5cm each for two people sharing, and the 2000 Mirapocket springs adjust to each sleeper independently, which helps with movement across a shared surface. If either of you is broad-shouldered or a restless sleeper, the UK king adds 15cm of width and 10cm of length.
What room size do I need for the Silentnight British Wool 3000 double?
We suggest at least 2.6m x 2.8m. That leaves walking space around the bed and, in most rooms, enough wall for bedside tables on both sides. This is our own guidance rather than Silentnight's, so measure your room including alcoves and door swing before you decide.
Should I buy the Silentnight British Wool 3000 in a UK double or a UK king?
Choose the UK double if your room is a typical UK size or you sleep alone. Choose the UK king, which is 15cm wider and 10cm longer, if you share and have space: we suggest at least 2.7m x 2.9m for it. The feel and construction are identical, so this is purely a space decision.
Does the UK double version suit a guest room?
It's a good fit for one. The 135 x 190cm footprint takes visiting couples comfortably, standard double sheets and duvets are stocked everywhere, and the medium/soft feel is forgiving for guests you can't ask about firmness preferences. One caveat: at 33cm deep it's a tall mattress, so check your fitted sheets are deep enough.
What are the dimensions of the Silentnight British Wool 3000 double?
It measures 135 x 190cm, or 4ft 6in x 6ft 3in, the standard UK double footprint. Depth is 33cm, which is on the substantial side, so allow for that when choosing bedding and check the height works with your bed frame. Prices for this size are shown live on this page and update as retailers change them.