Silentnight Comfort Breathe 1000 Mattress
Mattress
Silentnight Comfort Breathe 1000 Mattress
Size
Firmness
Construction
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.
- 90cm of width each: Two people sharing get 90cm each, so you can both stretch out without negotiating the middle of the bed.
- Distance plus independent springs: The 1000 Mirapocket springs respond individually to movement, and at this width a fidgeting partner is far enough away that you barely register them anyway.
- Space for the whole household: When children or pets treat your bed as theirs too, 180cm of width means everyone still gets a genuine share.
- Cool sleeping across a bigger surface: The Comfort Breathe fibre layer promotes airflow rather than trapping heat, useful when three or four warm bodies end up under one duvet.
- 30cm wider than a UK king: The UK super king is 30cm wider than the UK king and the same length, a difference you notice most on disturbed nights.
This size suits you if...
You share the bed every night and want the most undisturbed sleep possible, your children or a large dog regularly join you and a UK king feels crowded, or you have a big master bedroom where a smaller mattress would look lost. It also suits hot sleepers sharing with a warm partner, since the extra width and breathable fibre layer both help heat escape.
Consider another size if...
Your bedroom is smaller than the 3m x 2.9m we suggest for a UK super king, or you sleep alone. We'd recommend the UK king instead, which is 30cm narrower, the same length, and needs a room of at least 2.7m x 2.9m.
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What size room do I need for a super king Silentnight Comfort Breathe 1000?
We suggest at least 3m x 2.9m for a UK super king, and that's our guidance rather than Silentnight's. The mattress itself is 180 x 200cm, or 6ft x 6ft 6in. Before you buy, check the practical things too: door swing, the turn on your landing and whether the stairs allow a mattress this wide to pass.
How much space does each person get on a super king Comfort Breathe 1000?
Two people sharing get 90cm each. That's enough width that you can each sleep in your own space entirely, which matters more on this mattress than most: the medium/firm tension and independent Mirapocket springs already limit motion transfer, and the extra distance does the rest.
Is the Silentnight Comfort Breathe 1000 super king good for restless partners?
Yes, arguably the best size of this mattress for the job. The 1000 Mirapocket springs move independently, so one side compressing doesn't drag the other down, and with 90cm each a partner who turns all night is simply further away. If disturbance is your main reason for upgrading, width helps as much as any comfort layer.
Should I get the Comfort Breathe 1000 in a king or super king?
The UK super king is 30cm wider than the UK king and the same length. If children or pets join you regularly, or one of you sleeps restlessly, the extra width is the difference that matters. If your room is under 3m x 2.9m, take the UK king, which needs at least 2.7m x 2.9m.
Where can I buy the Comfort Breathe 1000 in a super king?
Compare the retailers listed on this page. The prices shown here are live and updated as retailers change them, so it's worth checking back if you're not ready to buy today. Stock of the largest sizes can shift more than the middle of the range, so availability may vary week to week.