Rest Assured Adleborough 1400 Pocket Ortho Mattress
Mattress
Rest Assured Adleborough 1400 Pocket Ortho Mattress
Size
Firmness
Extra Firm
Construction
Depth (cm)
26
Layers
2
Layer Details
- Comfort Layer. Soft white fibre fillings sit at the surface, which means the extra firm springs beneath don't feel harsh against your body. It's a cosy top rather than a plush one, so expect comfort without much sink.
- Support System. 1400 individual pocket springs, each encased in its own cloth pocket, adapt to your movement and distribute support to each part of your body. This gives firmer, more localised support than an open coil design, and less disturbance from a partner moving about.
Layer details from mattressonline.co.uk product page, September 2026.
- Room for two without taking over: At 135 x 190cm (4ft 6in x 6ft 3in), a UK double leaves space for a wardrobe and drawers in a typical bedroom, where a UK king can start to crowd them out.
- Pocket springs help when you're close: Each of you gets 67.5cm, so you sleep fairly near each other, and the individually pocketed springs mean one person turning over disturbs the other a little less.
- Firm support across the full width: The extra firm feel keeps two people from rolling towards a shared dip in the middle, which matters more on a UK double than on a wider bed.
- Bedding that's easy to find: Double sheets fit, and a 200 x 200cm double duvet covers you both, so kitting out a new bedroom with standard bedding is straightforward.
- Fits rooms smaller than a UK king needs: We suggest at least 2.6m x 2.8m for a UK double, compared with 2.7m x 2.9m for the UK king.
This size suits you if...
You share the bed with a partner in a standard UK bedroom and still want space for bedside tables on both sides, or you're setting up a guest room for visiting couples who prefer a firm sleep, or you sleep alone and like room to stretch out on a solid surface.
Consider another size if...
You and your partner are tall, or one of you sprawls and you'd like more elbow room. We'd recommend the UK king instead, which gives 75cm each; allow at least 2.7m x 2.9m for it.
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Will I feel my partner move on the Adleborough 1400 in a UK double?
Less than you would on an open coil mattress. The 1400 springs are each in their own cloth pocket, so they react separately. Yes, a UK double gives each of you 67.5cm, so you're closer together than on a UK king, but the pocketed springs soften the effect of a restless partner a little.
Adleborough 1400 UK double or UK king: how much space do you lose?
The UK double is 15cm narrower and 10cm shorter than the UK king, which works out at 7.5cm less each for two people sharing. In return it needs a smaller room: we suggest at least 2.6m x 2.8m, against 2.7m x 2.9m for the UK king.
Will a UK double Adleborough fit with bedside tables on both sides?
In most bedrooms, yes. We suggest at least 2.6m x 2.8m for a UK double, with around 3m x 3m the comfortable norm if you want tables either side and room to walk round the bed. In a tighter second bedroom, measure the wall space for tables before committing.
Is the Adleborough 1400 UK double long enough for tall people?
It's 190cm long, or 6ft 3in, the same length as the UK single and UK small double. Taller sleepers whose feet reach the end may prefer the UK king, which is 10cm longer. On a firm mattress like this one, you won't gain length by sinking in.
Is the Adleborough 1400 in a UK double a good choice for a guest room?
It suits a guest room well if your visitors are couples who like a firm bed, and a UK double fits most spare rooms. Bear in mind the extra firm feel divides opinion: lighter guests who sleep on their side may find it too firm for comfortable pressure relief.