Last seen for £445.55 at Mattress Man on 10th November 2026
Silentnight 1000 Pocket Ortho 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
- Independent support for two: Each Mirapocket spring moves on its own, which means your partner turning over registers less on your side of a shared 135cm surface.
- Fits typical UK bedrooms: We suggest at least 2.6m x 2.8m, which most British doubles and second bedrooms can manage with furniture still in place.
- Room for bedside tables: The 4ft 6in x 6ft 3in footprint usually leaves space for a table on both sides, something a wider size can quietly take away.
- Easy to dress on a budget: Double sheets and 200 x 200cm duvets are stocked everywhere at every price, helpful if you're kitting out a whole home at once.
- A firmer feel without a firmer price: An ortho-style pocket spring build in the most widely made UK size keeps costs modest for couples who want supportive rather than sink-in comfort.
This size suits you if...
You're a couple happy to share 67.5cm each and you want a firmer, supportive feel from independent pocket springs, or you're furnishing a guest room that needs to take visiting couples, or your bedroom sits around our suggested 2.6m x 2.8m minimum and a bigger bed would leave no room to move.
Consider another size if...
You and your partner want more personal space, or a pet regularly claims a corner of the bed. We'd recommend the Silentnight 1000 Pocket Ortho in a UK king instead, which is 15cm wider and 10cm longer; allow at least 2.7m x 2.9m 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 a UK double Silentnight 1000 Pocket Ortho big enough for two adults?
It works for most couples, with the caveat that space is shared rather than plentiful: 67.5cm each for two people sharing. The independent Mirapocket springs help here, because movement on one side transfers less to the other. If either of you sleeps starfish-style, the UK king's extra 15cm of width would be money well spent.
Will the Silentnight 1000 Pocket Ortho double fit in a small bedroom?
In most cases, yes. We suggest a minimum room of 2.6m x 2.8m, with around 3m x 3m the comfortable norm. The 135 x 190cm footprint usually leaves room for a wardrobe and chest of drawers too, which is why the UK double remains the default for second bedrooms and first flats.
Should I get this mattress in a double or a king for a guest room?
For a guest room, the UK double is usually the right call. It accommodates visiting couples without dominating a room that also has to hold storage, and double bedding is cheap and easy to find. Guests staying a few nights rarely need the extra width a UK king offers a couple sleeping there every night.
Will a double mattress get up the stairs in an older house?
A 4ft 6in x 6ft 3in mattress is one of the easier sizes to manoeuvre, and pocket spring mattresses flex a little on turns. Tight winders in older terraces or narrow new build landings can still be awkward, so measure the tightest point of the route before ordering.
Is the double the cheapest way for a couple to get this mattress?
Of the sizes that comfortably sleep two, the UK double is the smallest and typically the least expensive, though prices move, so compare the retailers listed on this page for the current figure. The UK small double is 15cm narrower, which is tight for two adults every night, so the double is usually the sensible floor for couples.