Silentnight Memory 1400 Mattress
Mattress
Silentnight Memory 1400 Mattress
Size
Firmness
Extra Firm
Construction
Depth (cm)
25
Layers
2
Layer Details
- Memory Foam. The top layer moulds to your body as you settle in, which means pressure is eased away from your muscles and joints. You should feel gently cradled rather than pushed back against.
- Mirapocket springs. Beneath the foam sit 1400 Mirapocket springs that respond independently to your every movement. In practice, that means support where you need it and better spinal alignment, with less motion carrying across the bed.
Layer details from silentnight.co.uk product page, September 2026.
- A sensible fit for typical UK bedrooms: We suggest a room of at least 2.6m x 2.8m, which most double bedrooms clear with space left for a wardrobe and drawers.
- Less partner disturbance at this shared size: The 1400 pocket springs respond to each sleeper separately, which matters more in a double, where you sleep closer together than in a UK king.
- Room for bedside tables on both sides: At 135cm wide, the UK double often leaves enough wall for a table each, something the wider sizes can rule out in smaller rooms.
- Firm support for two different sleepers: The extra firm feel keeps the surface stable across the full width, so a heavier partner settling in does not tilt your side of the bed.
- Easy to dress on any budget: Standard double sheets and duvets are sold everywhere, useful if you are kitting out a first flat or a whole home at once.
This size suits you if...
You share the bed every night and want the traditional couples' size without giving your whole room over to it, or you sleep alone and like space to stretch out, perhaps with a dog or cat claiming their usual corner. It also makes a solid guest room bed, since visiting couples can share it comfortably and the firm surface suits a range of sleepers.
Consider another size if...
You and your partner both like space and your room comfortably exceeds the double's needs. At 67.5cm each for two people sharing, some couples feel a little close; the UK king is 15cm wider and 10cm longer, and we suggest at least 2.7m x 2.9m for it.
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Is the Silentnight Memory 1400 double big enough for a couple?
For most couples, yes. The UK double gives 67.5cm each for two people sharing, and the 1400 pocket springs limit how much movement carries across, which helps when you sleep this close together. If either of you is broad shouldered or a restless sleeper, sizing up to the UK king buys 15cm more width and 10cm more length.
What room size do I need for the Silentnight Memory 1400 in a UK 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. If you are furnishing a second bedroom or a first flat, measure with your wardrobe and drawers pencilled in before you commit, since the mattress itself takes up 135 x 190cm of floor.
Should I buy the Silentnight Memory 1400 in a double or a king?
It comes down to your room and how much space you each want. 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 sits between those minimums, the UK double keeps the room usable; if you have the space and share every night, the UK king is the more comfortable long-term choice.
Will a double Silentnight Memory 1400 fit up a narrow staircase?
It arrives as a full-size 135 x 190cm mattress, and as a hybrid with a sprung core it bends less readily than an all-foam design. Silentnight doesn't publish handling guidance for stair access, so measure any turning stairs in an older terrace, or a tight new build landing, before ordering, and check the retailer's delivery terms for your route into the room.
Where can I buy the Silentnight Memory 1400 in a double?
Compare the retailers listed on this page. The prices shown here are live and updated as retailers change them, so it is the quickest way to see who currently stocks the UK double and at what cost. Stock and pricing can differ from the other sizes, which is why each size has its own price comparison.