Silentnight SleepResponse Relieve 3000 Combination Small Double Mattress
The Silentnight SleepResponse Relieve 3000 Combination Mattress pairs breathable latex with a CoolEase cover and Mirapocket zoned springs, which means pressure relief and cooler, better-aligned sleep.
- Cooler, more comfortable nights
- Latex eases pressure as you sleep
- Zoned support for spinal alignment
£1,799
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Silentnight SleepResponse Relieve 3000 Combination Mattress
More available sizes
Mattress details
Mattress
Silentnight SleepResponse Relieve 3000 Combination Mattress
Size
Firmness
Construction
Latex
Pocket Spring
Depth (cm)
Layers
3
Layer Details
Box top with CoolEase cover
An advanced box top wrapped in a CoolEase cover that Silentnight says draws heat from your body. That means a surface designed to keep you cool and comfortable.
Breathable latex
Latex inside the mattress that relieves pressure on your body as you sleep. Silentnight says it has a natural cooling effect, so you get cushioning without as much heat.
Mirapocket zoned support system
Silentnight's zoned pocket spring system, which it describes as scientifically proven to improve spinal alignment and posture. It gives different parts of your body support where it's needed.
Layer details from swiftfurnitureworks.com product page, November 2026.
Key benefits
- Space to spread out alone: It is 30cm wider than the UK single at the same length, which means a solo sleeper can turn over or sleep diagonally without an arm hanging off the edge.
- Kinder to a small room: Being 15cm narrower than the UK double, it can leave enough clearance for a door to swing open or a wardrobe to open fully in a tight bedroom.
- Zoned support for one body: The Mirapocket zoned springs are designed to support different parts of your body, so a single sleeper gets that support wherever they settle, rather than sharing the mattress.
- Cooler for a warm, small room: Small bedrooms can feel stuffy, and Silentnight says the latex and CoolEase cover are both designed to help you sleep cooler.
- Easy bedding: Small double fitted sheets fit it, and a standard double duvet covers it, so you can buy bedding without hunting for unusual sizes.
This size suits you if...
You sleep alone but feel cramped on a single, your bedroom is at least 2.4m x 2.8m but would feel crowded with a 4ft 6in frame, or you're furnishing a guest room where couples stay for a night or two rather than every night.
Consider another size if...
Two of you will share every night and want more room each. We'd recommend the UK double instead, which gives 67.5cm each for two sharing; we suggest at least 2.6m x 2.8m for the UK double.
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FAQ's
Can two people sleep on a UK small double Silentnight Relieve 3000?
For an occasional stay, yes. It suits a guest room where couples visit now and then. For sharing every night it is a little tight: the UK small double is 15cm narrower than the UK double, and the UK double gives 67.5cm each for two sharing, so couples would be better off sizing up.
What size bedroom do I need for a UK small double mattress?
We suggest allowing at least 2.4m x 2.8m for a UK small double. That leaves space to walk around the bed and open drawers. If your room is smaller than that, the UK single needs less room, and we suggest at least 2.1m x 2.8m for the UK single.
What bedding fits the Relieve 3000 in a UK small double?
Small double (4ft) fitted sheets fit, and a standard double duvet covers it. Silentnight doesn't publish a depth for this mattress, so check the pocket depth on any fitted sheet you buy, ideally once the mattress has arrived and you can measure it yourself.
Is a small double Silentnight Relieve 3000 a good upgrade for a teenager outgrowing a single?
It can be. The UK small double is 30cm wider than the UK single but the same length, so a growing teenager gets more room to turn over without the bed reaching further into the room. Width is the only extra floor space it takes up, which helps when the room is small.
Will a UK small double mattress fit in a loft conversion?
Often, yes. At 4ft x 6ft 3in it is narrower than a UK double, which can leave more standing room on the side where the ceiling is highest. Measure the full-height area of the room and the stairs before you compare the retailers listed on this page.