Silentnight Comfort Breathe 1200 Mattress
Mattress
Silentnight Comfort Breathe 1200 Mattress
Size
Firmness
Construction
Depth (cm)
25
Layers
5
Layer Details
- Sleep surface. A naturally hypoallergenic fabric surface that's soft against the skin. A sensible choice if allergies or sensitive skin are a concern.
- Comfort Breathe®. Silentnight says 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.
- 1200 Mirapocket spring unit. 1200 pocket 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 is designed to aid spinal alignment, helpful if back or neck pain is part of your mornings.
- Protective Layer. This layer spreads pressure from the spring unit across the mattress, which means less localised wear over time. It's there for longevity rather than feel.
- Durable case. A soft but hard-wearing outer case designed to keep the mattress comfortable for years. Unglamorous, but it matters for how the mattress ages.
Layer details from silentnight.co.uk product page, September 2026.
- Sensible sharing space: Two people get 67.5cm each, which is workable for most couples who sleep reasonably close together.
- Fits typical UK rooms: We suggest a room of at least 2.6m x 2.8m, which most double bedrooms in the UK comfortably meet.
- Springs that ignore your partner: The 1200 Mirapocket springs respond individually, which means a partner turning over at this shared width is less likely to wake you.
- Heat control for two: Sharing a 135cm-wide bed builds warmth quickly, so the airflow-promoting Comfort Breathe fibres are doing useful work here rather than being a nice extra.
- Easy to dress and move: Standard double bedding is sold everywhere at every price, and this size turns tight staircases and landings more easily than a UK king.
This size suits you if...
You're a couple wanting the traditional shared size in a room that can't spare space for anything bigger, you're furnishing a guest room that needs to sleep visiting couples properly, or you sleep alone and want genuine room to spread out. The medium/firm feel suits back and front sleepers best, so a couple who both sleep on their backs will find this a comfortable fit.
Consider another size if...
You and your partner both like space, or one of you is a restless sleeper. The UK king is 15cm wider and 10cm longer, and we'd recommend it if your room allows at least 2.7m x 2.9m.
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How much space does each person get on a UK double Comfort Breathe 1200?
Two people sharing get 67.5cm each. That's noticeably less than each person would have on a UK single to themselves, which is why couples used to sleeping apart sometimes find a double snug at first. The individually responding Mirapocket springs help, because you feel your own support rather than your partner's movements.
Will the UK double Comfort Breathe 1200 fit a bedroom with bedside tables on both sides?
Usually, yes. We suggest a room of at least 2.6m x 2.8m for a UK double, and around 3m x 3m is the comfortable norm. At 135cm wide, the mattress leaves more clearance either side than a UK king would in the same room, so tables and walking space on both sides are realistic.
Is the UK king Comfort Breathe 1200 much bigger than the UK double?
The UK double is 15cm narrower and 10cm shorter than the UK king. That extra width is roughly a hand-span more per person, which restless couples tend to appreciate. The trade-off is room space: allow at least 2.7m x 2.9m for the UK king, against 2.6m x 2.8m for the UK double.
Is a double Comfort Breathe 1200 a good choice for a guest room?
It's arguably the ideal guest room size, because it sleeps visiting couples properly while fitting rooms that also hold a wardrobe and drawers. The hypoallergenic sleep surface is a quiet bonus for guests with sensitive skin, and the medium/firm feel is a safe middle ground when you can't predict who'll be sleeping on it.
Where can I buy the Comfort Breathe 1200 in a UK double?
Availability shifts, so the most reliable answer is the live comparison table on this page, which is updated as retailers change their prices and stock. It shows current UK double listings side by side, so you can check who has it before you commit.