Silentnight Eco Comfort Airmesh 3000 Boxtop Mattress
Mattress
Silentnight Eco Comfort Airmesh 3000 Boxtop Mattress
Size
Firmness
Medium Soft
Construction
Depth (cm)
35
Layers
5
Layer Details
- Coolmax Cover. A soft-touch Coolmax cover wicks moisture away from your body, which means less clamminess on warmer nights. It's the first line of temperature control before you reach the fillings.
- Microquilted Layer. The cover fabric is stitched directly into the filling beneath it, giving that plush, quilted surface feel. You'll notice it as a smooth, slightly pillowy first impression when you lie down.
- Eco Comfort Fibre. A finely packed layer of fibres made from recycled materials adds extra padding that cradles your body. It's where much of the mattress's soft, cushioned character comes from.
- Airmesh. Silentnight's 3D honeycomb Airmesh uses an open structure to let air move through the mattress. In practice, that means heat has somewhere to go rather than building up around you.
- Mirapocket Springs. The core holds 2000 Mirapocket springs alongside 1000 mini pocket springs, all made from durable steel. The mini springs target smaller, harder-to-reach areas like the lower back, so support feels more tailored than a single-spring system.
Layer details from mattressonline.co.uk product page, September 2026.
- The classic shared size: At 135 x 190cm, the UK double gives couples 67.5cm each for two people sharing, which is enough for most pairs to sleep comfortably.
- Fits rooms a king would crowd: Allow at least 2.6m x 2.8m and you should still manage bedside tables on both sides, something a wider size often rules out.
- Full spring count, smaller footprint: The 2000 Mirapocket springs and 1000 mini pocket springs are present in the UK double, so neither sleeper compromises on tailored support.
- Cooling matters more when sharing: Two bodies generate more heat than one, so the Coolmax cover and Airmesh airflow layer are genuinely useful at this shared width.
- Easy to dress: Standard double sheets and duvets fit, though at 35cm deep you'll want deep fitted sheets, which are still widely stocked.
This size suits you if...
You share the bed most nights and want the traditional couples' size, or you sleep alone and like room to stretch out, perhaps with a dog or cat claiming a corner. It also works well in a guest room that hosts visiting couples, provided your bedroom measures at least 2.6m x 2.8m and you're happy with a soft, cushioned medium feel.
Consider another size if...
You and your partner both like space, or one of you is a restless sleeper, and your room can take something bigger. We'd recommend the UK king instead: it's 15cm wider and 10cm longer, and we suggest a room of at least 2.7m x 2.9m for it.
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Is the Silentnight Eco Comfort Airmesh 3000 Boxtop UK double big enough for a couple?
For most couples, yes. The UK double gives 67.5cm each for two people sharing, and the pocket spring core means each sleeper gets support tailored to their own shape. That said, if either of you is broad-shouldered or tends to sprawl, the UK king adds 15cm of width and 10cm of length.
What are the dimensions of the Eco Comfort Airmesh 3000 Boxtop in a UK double?
The UK double measures 135 x 190cm, or 4ft 6in x 6ft 3in. Bear in mind the boxtop build is also 35cm deep, so it sits noticeably taller on the bed frame than a standard mattress and needs deep fitted sheets in double size.
Will a UK double fit my bedroom with bedside tables on both sides?
Usually, yes, and that's part of the appeal. We suggest a room of at least 2.6m x 2.8m for the UK double, with a bit more being the comfortable norm. That typically leaves enough wall width for a table each side and walking space around the bed, where a UK king could dominate the room.
Can the UK double boxtop get up a narrow staircase?
It's a 135cm-wide mattress with a deep 35cm boxtop build, so it's bulkier than a slimmer double. Turning stairs in older terraces and tight new build landings can be awkward, so measure your narrowest point and check delivery details with the retailers listed on this page before ordering.
Is the UK double the cheapest way to get this mattress for two people?
It's the smallest standard couples' size Silentnight offers in this model, so it's typically the lowest-priced option for two sharing. Prices change often, so compare the retailers listed on this page for current figures. If your room is under our suggested 2.6m x 2.8m, the UK small double is 15cm narrower and the same length.