Silentnight SleepResponse Support 1400 Pocket Sprung Small Double Mattress
The Silentnight SleepResponse Support 1400 Pocket Sprung Mattress combines 1400 pocket springs with a stitched pillow top, which means you get firm, zoned support with a little softness in the surface layer.
- Firm feel for back sleepers
- Eases pressure with memory foam
- Zoned support from pocket springs
£1,199
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Silentnight SleepResponse Support 1400 Pocket Sprung Mattress
More available sizes
Mattress details
Mattress
Silentnight SleepResponse Support 1400 Pocket Sprung Mattress
Size
Firmness
Firm
Construction
Memory Foam
Pocket Spring
Depth (cm)
39
Layers
3
Layer Details
Pillow top
A stitched pillow top finished in a soft knit cover infused with aloe vera. It adds a softer surface feel on top of the firm mattress.
Memory foam comfort layer
A thin memory foam layer that Silentnight badges as pressure relieving. It gives some cushioning at the surface without losing the firm feel.
Mirapocket pocket spring unit
Individual springs, each in its own fabric pocket, working independently. This gives zoned support that responds to the part of your body pressing on it.
Layer details from dreams.co.uk product page, November 2026.
Key benefits
- Room to spread out alone: The UK small double is 30cm wider than the UK single, which means you can sleep diagonally or starfish without a hand dropping off the edge.
- Fits a tighter bedroom: Being 15cm narrower than the UK double, it can leave you a little more floor to edge past the bed or open a wardrobe door fully.
- Firm feel in a compact frame: Silentnight rates the mattress firm, with zoned pocket springs beneath a thin memory foam layer, so a smaller room needn't mean settling for a softer, less supportive bed.
- Easy to dress: A 4ft frame is a standard UK size, so small double fitted sheets and an ordinary double duvet are straightforward to find in most shops.
- Practical for guests: Visiting couples can manage a night or two on it, which makes it a sensible choice for a spare room that sees occasional pairs rather than nightly use.
This size suits you if...
You sleep alone, like to stretch out and have outgrown a UK single, or your bedroom is snug and a full double would leave you squeezing past the end of the bed. It also fits if you're furnishing a spare room or loft conversion where couples stay now and then, but nobody shares it every night.
Consider another size if...
You share the bed with a partner every night. We'd recommend the UK double instead, which gives 67.5cm each for two sharing; allow at least 2.6m x 2.8m for it.
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FAQ's
Is the Silentnight SleepResponse Support 1400 small double big enough for two people?
For a short stay, yes. Two adults can share a UK small double for a weekend, but it gets snug quickly for nightly use. If you share every night, the UK double gives 67.5cm each for two sharing, and we suggest at least 2.6m x 2.8m of room for it.
What size bedroom do I need for a UK small double Silentnight SleepResponse Support 1400?
We suggest at least 2.4m x 2.8m. That leaves enough space to walk round the bed and use bedside furniture comfortably. In a loft conversion with a sloping ceiling, measure where you can actually stand, because the usable floor is often smaller than the full room.
What bedding fits a 4ft Silentnight SleepResponse Support 1400?
Small double (4ft) fitted sheets fit the 120 x 190cm base, and a standard double duvet works on top. The mattress is 39cm deep with a stitched pillow top, so check the pocket depth on any fitted sheet before you buy, as shallow ones may pop off the corners.
Should a single adult choose the small double or double SleepResponse Support 1400?
If you sleep alone, the UK small double gives you plenty of space while keeping more of your floor clear. The UK double is 15cm wider, which only really helps if a partner joins you regularly. Room size usually decides it: the double needs at least 2.6m x 2.8m.
Is a UK small double SleepResponse Support 1400 a good upgrade from a single for a teenager?
It can be, as long as they're happy on a firm bed. It's 30cm wider than the UK single and the same length, so they gain width without the bed reaching further into the room. Measure the bedroom against our suggested 2.4m x 2.8m first.