Silentnight Comfort Breathe 1000 Double Mattress
The Silentnight Comfort Breathe 1000 is a medium/firm pocket sprung mattress with a focus on temperature control.
- Breathable fibres for hot sleepers
- Hypoallergenic, dust mite resistant
- 60-night trial & 5-year guarantee
£335.53
Get the lowest price we've found
Save with the previous model
Some retailers still sell the earlier version of this mattress for less than the current model's best price.
Silentnight Comfort Breathe 1000 Mattress
More available sizes
Mattress details
Mattress
Silentnight Comfort Breathe 1000 Mattress
Size
Firmness
Medium Firm
Construction
Foam
Pocket Spring
Memory Foam
Depth (cm)
24
Layers
5
Layer Details
Sleep Surface
A naturally hypoallergenic 100% polyester fabric that's soft and gentle on the skin. A sensible choice if allergies tend to disturb your sleep.
Comfort Breathe®
Silentnight states these fibres are 15x more breathable than standard memory foam, promoting airflow and regulating temperature. In practice, that means less overnight heat build-up, which hot sleepers will appreciate.
1000 Mirapocket Spring Unit
1000 Mirapocket springs respond individually to your body's movements, which means support where you need it rather than a one-size-fits-all push back. The zoning helps keep your spine aligned.
Protective Layer
This layer disperses pressure from the spring unit across the mattress. The aim is a longer usable life, as it stops the springs wearing through to the comfort layers above.
Durable Case
A soft, durable outer case that holds everything together and helps the mattress stay comfortable over the years.
Layer details from silentnight.co.uk product page, September 2026.
Key benefits
- A shared size that fits the room: At 135 x 190cm, the UK double leaves space in a typical bedroom for bedside tables on both sides, which a UK king often doesn't.
- Less partner disturbance where it matters: The 1000 Mirapocket springs move independently, which means a restless partner's turning is felt less across a shared 135cm surface.
- Cooler for two: Two bodies generate more heat than one, and the Comfort Breathe fibre layer lets that warmth escape rather than trap it around you both.
- Easy to dress on a budget: Double sheets and duvets are stocked everywhere at every price, useful if you're furnishing several rooms at once.
- Kind to allergy sufferers sharing a bed: The hypoallergenic sleep surface and dust mite resistance help if either of you wakes congested.
This size suits you if...
You share the bed every night and want the traditional couples' size in a room where a UK king would dominate, or you sleep alone and like space to spread out, perhaps with a dog or cat claiming a corner. It also suits a guest room that hosts visiting couples, where a cooler, medium/firm mattress will please most people passing through.
Consider another size if...
You and your partner both want more personal space than 67.5cm each for two people sharing allows. We'd recommend the UK king instead, which is 15cm wider and 10cm longer; allow at least 2.7m x 2.9m of room 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 Comfort Breathe 1000 double big enough for two adults?
It gives 67.5cm each for two people sharing, which most couples find workable, helped here by the 1000 Mirapocket springs reducing how much you feel each other move. If either of you is broad shouldered or a sprawler, the UK king, 15cm wider and 10cm longer, is the more comfortable long term choice.
What room size do I need for the Silentnight Comfort Breathe 1000 in a UK double?
We suggest at least 2.6m x 2.8m, with around 3m x 3m the comfortable norm. That smaller footprint is the UK double's real advantage: in a typical bedroom it leaves room for a wardrobe, drawers and bedside tables on both sides, where the UK king would eat into walking space.
Is the UK double Comfort Breathe 1000 a good choice for a guest room?
Yes, it's a sensible pick. The medium/firm tension suits the widest range of visiting sleepers, the breathable fibre layer keeps couples cooler than memory foam would, and the hypoallergenic surface is a quiet kindness to guests with allergies. The UK double footprint also fits most spare rooms without crowding them.
How big is the Silentnight Comfort Breathe 1000 double?
It measures 135 x 190cm, or 4ft 6in x 6ft 3in, and takes standard double sheets and a 200 x 200cm double duvet. That's the long standing UK size for two people sharing, and it's the easiest size to buy bedding for at every price point.
Will a double mattress fit up the stairs in an older terrace?
A pocket sprung mattress like this can't be rolled or folded the way some boxed foam mattresses can, so measure your stairwell and any turns before ordering, particularly in older terraces or tight new build landings. At 135cm wide it's manageable for two people, but awkward corners catch buyers out.