Silentnight UltraGel 2000 Pocket Box Top Mattress
Mattress
Silentnight UltraGel 2000 Pocket Box Top Mattress
Size
Firmness
Medium
Construction
Depth (cm)
33
Layers
3
Layer Details
- UltraGel comfort layer. A gel infused layer that responds as you move, with cooling foam designed to chill and relax your body. In practice, this means less of the heat build-up you can get with standard foam.
- Boxtop. A sumptuous boxtop with advanced gel foam that spreads pressure and bodyweight evenly, which means fewer pressure points at your hips and shoulders. It adapts as you change position through the night.
- Mirapocket springs. 2000 Mirapocket springs, each in its own fabric pocket, so each one responds to your body independently. The zoned support is scientifically proven, according to Silentnight, to improve spinal alignment and posture.
Layer details from silentnight.co.uk product page, September 2026.
- Room for two, sized for real bedrooms: At 4ft 6in x 6ft 3in, it gives a couple a shared sleep surface while leaving space to walk round the bed in an average UK room.
- Independent springs matter more when sharing: The 2000 Mirapocket springs respond to each sleeper separately, which means a partner turning over on their half is less likely to disturb yours.
- Cooling counts double with two bodies: Two sleepers generate more heat than one, so the gel infused top layer has more to do in a UK double, and that's exactly what it's there for.
- Soft feel across the whole width: The boxtop spreads pressure evenly from edge to edge, so neither sleeper is stuck with a firmer strip along their side.
- Easy to dress: Standard double sheets and duvets fit straight away and are sold everywhere, handy if you're kitting out a bedroom from scratch.
This size suits you if...
You're a couple in a typical UK bedroom where a UK king would crowd the walkways, you sleep on your side and want a soft, forgiving surface for hips and shoulders, or you're setting up a guest room that needs to sleep visiting pairs comfortably. It also suits a solo sleeper who wants space to spread out, perhaps with a dog or cat that has claimed a corner.
Consider another size if...
Your room measures at least 2.7m x 2.9m and you'd both appreciate more space, or either of you is tall. We'd recommend the UK king instead: it's 15cm wider and 10cm longer than the UK double.
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Is the UltraGel 2000 in a UK double big enough for two people?
For most couples, yes. Two people sharing a UK double get 67.5cm each, and the 2000 pocket springs help each half of the bed respond to its own sleeper. It's cosier than a UK king, so if either of you sprawls or you share with a restless partner, size up where the room allows.
What room size do I need for the UltraGel 2000 in a UK double?
We suggest at least 2.6m x 2.8m, which leaves room to walk around the bed and open drawers. That's our guidance rather than Silentnight's. If you want bedside tables on both sides, measure the wall the bed sits against: the mattress is 135cm wide, so add the width of both tables to check the fit.
Should I choose the UltraGel 2000 in a UK double or a UK king?
It comes down to your room and how you sleep. The UK double is 15cm narrower and 10cm shorter than the UK king, and we suggest at least 2.7m x 2.9m for the UK king. If your bedroom clears that comfortably and you share every night, the UK king gives you noticeably more room; otherwise the UK double is the sensible fit.
Is the UK double UltraGel 2000 a good choice for a guest room?
It's a strong fit. A UK double sleeps visiting couples as well as solo guests, and the medium soft, boxtop feel is the kind of plushness most people find easy to settle into for a few nights. The main caveat is regular use by heavier sleepers or firm mattress fans, who may find it too yielding.
Is a UK double worth it for one person?
Often, yes. Sleeping alone on a UK double means the full 135cm width to yourself, which suits anyone who moves about at night or shares with a pet. The medium soft feel of the UltraGel 2000 also rewards side sleepers who like to shift position, since there's give wherever you end up.