Firmness
Type
Pocket Spring
Depth (cm)
24
Number of Layers
5
Trial Period (nights)
60
Warranty (years)
5
Price Range
£299 to £579
Best Sleeping Position(s)
Certifications
Assessed from Silentnight's published specification for this mattress, captured September 2026, and from regular price comparison across our UK retail partners.
If you're a hot sleeper on a budget, this is the sort of mattress designed with you in mind. The Comfort Breathe layer uses breathable fibres rather than memory foam, which means airflow and temperature regulation instead of that sink-in warmth foam can trap. The 1000 Mirapocket springs respond individually to your body, giving zoned support and better spinal alignment than a basic open coil unit. The sleep surface is naturally hypoallergenic and the mattress is dust mite resistant, a genuine plus for allergy sufferers. Priced between £299 and £579 depending on size, it's a simple construction, but the 60-night trial gives you a fair window to decide at home.
Key Features & what's inside
- 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.
Who's it NOT for?
If you prefer a soft, cushioned feel, the medium/firm tension here may feel a little unforgiving, and lightweight side sleepers in particular might find it too firm at the shoulders and hips. Fans of that slow, hugging memory foam sensation should also look elsewhere, as this uses breathable fibre instead.
Silentnight Comfort Breathe 1000 Mattress
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Is the Silentnight Comfort Breathe 1000 good for hot sleepers?
Yes, that's arguably its main strength. The Comfort Breathe fibre layer is, per Silentnight, 15x more breathable than standard memory foam, promoting airflow and regulating temperature rather than trapping heat the way foam can.
How firm is the Silentnight Comfort Breathe 1000?
Silentnight rates it as medium/firm. That suits most back and front sleepers, although lightweight side sleepers may find it slightly too firm for comfortable pressure relief at the shoulders and hips.
Does the Silentnight Comfort Breathe 1000 come with a trial and guarantee?
Yes. Silentnight offers a 60-night trial, so you can test it at home before committing fully, and the mattress is covered by a 5-year guarantee. Delivery is quoted at 14 days.
How deep is the Silentnight Comfort Breathe 1000?
It's 24cm deep. That's a fairly standard depth, so most fitted sheets should work without any trouble, though it's shallower than some premium hybrid designs.
What sizes does the Silentnight Comfort Breathe 1000 come in?
Five UK sizes: Single, Small Double, Double, King and Super King. Prices run from £299 to £579 depending on the size you choose.
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