Last seen for £445.55 at Mattress Man on 1st October 2026
Silentnight 1000 Pocket Ortho Small Double Mattress
The Silentnight 1000 Pocket Ortho is a pocket spring mattress from one of the UK's biggest sleep brands.
- Firm feel for back sleepers
- Springs move independently
- Hypoallergenic knitted cover
Save with the previous model
Some retailers still sell the earlier version of this mattress for less than the current model's best price.
More available sizes
Last seen for £445.55 at Mattress Man on 1st October 2026
Last seen for £521.55 at Mattress Man on 10th November 2026
Last seen for £626.05 at Mattress Man on 1st October 2026
Last seen for £445.55 at Mattress Man on 10th November 2026
Last seen for £331.55 at Mattress Man on 10th November 2026
Mattress details
Mattress
Silentnight 1000 Pocket Ortho Mattress
Size
Firmness
Firm
Construction
Pocket Spring
Depth (cm)
Layers
3
Layer Details
Soft knit cover
A soft knitted cover with a hypoallergenic finish. It adds a little comfort at the surface and suits you if you want a cover that's gentler on sensitive sleepers.
Eco Comfort fibre filling
Eco Comfort Fibre filling layers sit under the cover and give gentle cushioning. It's a simple, fairly light comfort layer, so expect less sink-in than you'd get from deep foam.
Mirapocket spring core
1,000 individual Mirapocket springs, each working independently to spread weight evenly. This means support follows your shape, and you're less likely to feel a partner move.
Layer details from mattressman.co.uk and dunelm.com product pages, October 2026.
Key benefits
- Room to stretch out alone: At 30cm wider than the UK single, this size suits an adult who sleeps alone but has grown tired of single-bed confinement.
- Fits where a double won't: It's 15cm narrower than the UK double, which can be the difference between a door that clears and one that doesn't in a box room or studio.
- Firmer support in a compact footprint: The 1,000 Mirapocket springs shape support to your body, so smaller-room buyers aren't trading proper spinal support for floor space.
- A sensible guest room choice: Two people can share it for the odd weekend visit, and its ortho-style support tends to divide guests less than a soft, sink-in feel would.
- Standard bedding, no hunting: 4ft is a recognised UK size, so small double fitted sheets are easy to find, and a standard double duvet drapes comfortably over it.
This size suits you if...
You sleep alone and want real space without giving your room over to the bed, your bedroom or loft conversion can't take a 135cm frame, or you're kitting out a guest room or holiday let where couples stay occasionally rather than every night. A firmer, supportive feel suits you better than a plush one.
Consider another size if...
You share the bed every night and can spare the floor space, since 120cm is snug for two adults long term. We'd recommend the UK double instead, allowing at least 2.6m x 2.8m of room for it.
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FAQ's
Is a small double big enough for one adult on the Silentnight 1000 Pocket Ortho?
Comfortably, yes. At 120 x 190cm it gives a solo sleeper 30cm more width than a UK single, enough to change position freely without reaching the edge. The 1,000 Mirapocket springs respond to your body wherever you lie, so the extra width is all usable sleeping surface rather than dead space at the sides.
Will the small double Silentnight 1000 Pocket Ortho fit in a box room?
Often it will where a standard double won't. The mattress is 120cm wide, 15cm narrower than a UK double, and we suggest a room of at least 2.4m x 2.8m to leave walking space around the frame. Measure with the door swing in mind; in very tight rooms that clearance decides everything.
Can a couple use the small double 1000 Pocket Ortho for guest stays?
For occasional nights, yes. Two adults fit, and because each of the 1,000 pocket springs moves independently, one guest turning over is less likely to disturb the other. It's snug for nightly sharing, but for a guest room or holiday let where couples visit now and then, it's a practical fit.
What bed frame and bedding fit a 120 x 190cm mattress?
You need a 4ft small double frame, as the mattress won't sit properly on a single or standard double base. Small double fitted sheets are widely stocked because 4ft is a standard UK size, and most people pair them with an ordinary double duvet, which gives a pleasant overhang on both sides.
Is the small double a good size for a teenager outgrowing a single?
It's the natural step up. The Silentnight 1000 Pocket Ortho in a UK small double adds 30cm of width over the UK single while staying the same 190cm length, so it fits rooms that can't lose much more floor space. The firmer ortho-style support also suits a growing sleeper better than a soft, sink-in surface.