Silentnight Pocket Essentials 800 Memory Mattress
Mattress
Silentnight Pocket Essentials 800 Memory Mattress
Size
Firmness
Medium Firm
Construction
Depth (cm)
24
Layers
2
Layer Details
- Memory foam. This top layer gently moulds to the contours of your body, which means pressure points at your hips and shoulders get some relief. It provides that cushioned, hugging comfort memory foam is known for.
- Mirapocket springs. Beneath the foam, 800 Mirapocket springs respond independently to your body's movements. This gives zoned support and improved spinal alignment, so your back stays in a healthier position through the night.
Layer details from silentnight.co.uk product page, September 2026.
- Sensible space for two: Two people sharing get 67.5cm each, and the 800 Mirapocket springs move independently, so a partner turning over is less likely to wake you.
- Fits a typical UK bedroom: We suggest a room of at least 2.6m x 2.8m, which most doubles rooms in terraces and new builds clear with space for wardrobes and drawers.
- Generous for one: Sleeping solo, the full 135cm width lets you spread out, with a spare corner left over if a dog or cat has claimed one.
- Easy to dress: Standard double sheets and duvets are stocked everywhere at every price, which helps if you're kitting out a whole home in one go.
- Guest room friendly: A medium firm feel and a size that sleeps visiting couples comfortably make the UK double a safe, unfussy choice for a spare room.
This size suits you if...
You're a couple in a typical UK bedroom where a bigger bed would crowd the room, you sleep alone and want space to stretch out, or you're setting up a guest room that needs to handle visiting couples without complaint.
Consider another size if...
You're a taller couple, or 67.5cm each sounds snug once you're both settled. 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 Pocket Essentials 800 in a UK double big enough for a couple?
For most couples, yes. Two people sharing get 67.5cm each, and the 800 Mirapocket springs respond independently to movement, so one restless sleeper disturbs the other less. If either of you is broad shouldered or you both sprawl, the space can feel a little tight, in which case the UK king is the size to consider.
Should I buy the Memory Pocket 800 in a UK double or size up to the UK king?
It usually comes down to your room. The UK double is 15cm narrower and 10cm shorter than the UK king, and we suggest at least 2.6m x 2.8m for it, against 2.7m x 2.9m for the UK king. If your bedroom clears the larger figure with room for bedside tables, the extra width is worth having for two.
Will a UK double fit a bedroom with bedside tables on both sides?
In most rooms, yes. At 135cm wide, the UK double leaves space for a table each side in rooms around the 3m x 3m mark, which is the comfortable norm. Our minimum of 2.6m x 2.8m still works, though one table may need to be slim. Measure the wall the bed sits against before you order.
Is the UK double a good size for a solo sleeper?
Yes, arguably a generous one. On your own you get the whole 135cm width, which means you can change position freely and the memory foam layer only compresses where you actually lie. There's room to spare if a pet insists on sharing, and the medium firm feel suits most back and side sleepers.
Does this mattress work in a guest room?
It's a sensible fit. The UK double sleeps visiting couples, the medium firm feel is a safe middle ground for guests whose preferences you can't predict, and it sits at the affordable end of the pocket sprung market, which matters for a bed used a few weekends a year. Just check the room meets our suggested 2.6m x 2.8m.