Last seen for £331.55 at Mattress Man on 10th November 2026
Silentnight 1000 Pocket Ortho Single 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
- Fits where other beds won't: At 90cm wide, it leaves room for a desk, wardrobe and toy storage in a child's bedroom, or slots under the slope of a loft conversion.
- Supportive for growing sleepers: The ortho-style firmer feel gives teens and heavier children a stable, supportive surface rather than a soft one they sink into.
- Pocket springs at this size: Many budget singles use open coils, so getting 1,000 individual Mirapocket springs means support that follows the sleeper's shape rather than one tensioned sheet.
- Two singles in one guest room: Its narrow footprint makes a pair of singles workable in a spare room, giving guests separate beds where a double would dominate the space.
- Cheap, easy bedding: Standard single sheets and a 135 x 200cm duvet fit, and both are the most widely stocked bedding of any UK size.
This size suits you if...
You're buying for a child or teenager who has outgrown a cot or small single, you sleep alone and want firmer support without giving over the whole room to a bed, or you're kitting out a spare room, student flat or study that doubles as guest space. It also suits siblings sharing, where two UK singles plus a walkway fit more easily than most alternatives.
Consider another size if...
You're an adult who spreads out in the night, or you share the bed even occasionally. We'd recommend the UK small double instead: it's 30cm wider, the same length, and we suggest at least 2.4m x 2.8m of floor space for it.
Similar Mattresses in This Price Range
Did you know? On Mattress Unboxed we have over 1,000 different mattresses to suit all types of sleepers. View all mattresses.
FAQ's
Is the Silentnight 1000 Pocket Ortho single good for a child's bedroom?
Yes, with one caveat. The 90 x 190cm footprint leaves space for storage and a desk in a typical child's room, and the firmer ortho-style feel supports growing bodies well. Very light children may find it a little firm at first, though a mattress protector and time usually soften the first impression slightly.
Will the single size fit a bunk bed or mid sleeper?
The 90 x 190cm footprint is the standard fit for UK bunk beds, cabin beds and mid sleepers. Raised frames often set a maximum mattress depth for safety rail clearance, though, so check your frame's stated limit against the depth listed by the retailer before you buy.
How much floor space do I need for this single mattress?
We suggest allowing at least 2.1m x 2.8m, which gives you room to walk alongside the bed and open drawers or wardrobe doors. That modest footprint is why the UK single works in box rooms, lofts with a narrow flat ceiling section, and spare rooms that also hold a desk.
Can two adults sleep on a UK single?
No, and we wouldn't suggest trying even for occasional nights. At 90cm wide, a UK single is designed for one sleeper. If you need to sleep two people, the UK double is 45cm wider and the same length; two separate UK singles also work well in a guest room.
Is a single big enough for an adult, or should I size up?
A UK single suits most solo adults for everyday use, particularly since it's the same 190cm length as the UK double. If you're a restless sleeper or simply like space to spread out, the UK small double adds 30cm of width and needs a room of at least 2.4m x 2.8m.