Silentnight SleepResponse Support 1400 Pocket Sprung 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
Get the lowest price we've found
Save with the previous model
Some retailers still sell the earlier version of this mattress for less than the current model's best price.
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
- Space to share without crowding the room: At 135cm wide, the UK double gives each of you 67.5cm, which means two adults can share comfortably while the bed still leaves floor space around it.
- Independent springs for two sleepers: The 1400 pocket springs each move on their own, which means a partner shifting on one side should disturb the other side a little less.
- Firm support across the whole width: Silentnight describes the Mirapocket support as zoned, so both of you get the same firm, structured feel wherever you lie on the UK double.
- Fits around the rest of your furniture: We suggest allowing at least 2.6m x 2.8m, so a UK double often still leaves room for bedside tables on both sides in an average bedroom.
- Bedding that's easy to find: Standard double sheets and a 200 x 200cm double duvet fit, although check that fitted sheet pockets are deep enough for a 39cm mattress.
This size suits you if...
You share a bed with a partner in an average-sized bedroom and want a firm, supportive feel, or you're kitting out a guest room where visiting couples will stay. It also suits a solo sleeper who likes room to stretch out, with space left over for a dog or cat curled up at the foot.
Consider another size if...
Either of you is tall or you often feel short of room side to side. We'd recommend the UK king instead, which is 15cm wider and 10cm longer; allow at least 2.7m x 2.9m for it.
Similar Mattresses in This Price Range
Did you know? On Mattress Unboxed we have over 1,000 different mattresses to suit all types of sleepers. View all mattresses.
FAQ's
Is the Silentnight SleepResponse Support 1400 UK double big enough for two adults?
For most couples, yes. A UK double gives each of you 67.5cm of width, which is comfortable if you don't sprawl. If one of you is a restless or broad-shouldered sleeper, the UK king gives you 7.5cm more each, which you'll notice through the night.
What size bedroom do I need for a UK double mattress?
We suggest at least 2.6m x 2.8m for a UK double, with around 3m x 3m feeling comfortable. That usually leaves room to walk round the bed and open a wardrobe, which matters in a second bedroom or a first flat where every bit of floor is spoken for.
Should I get a UK double or UK king Silentnight SleepResponse Support 1400?
Choose the UK double if your room is tight or you need space for drawers and bedside tables. The UK king is 15cm wider and 10cm longer, but we suggest at least 2.7m x 2.9m for it, so measure the room first, then compare the retailers listed on this page.
What sheets fit a 39cm deep double mattress?
Any double sheet fits the 135 x 190cm footprint, and a 200 x 200cm double duvet covers it well. The catch is depth: at 39cm this mattress is deep, so look at the pocket depth on fitted sheets before buying, as shallow ones can ping off the corners.
Is a UK double too big for one person with a pet?
Not usually. A UK double gives a solo sleeper plenty of width to spread out, and a dog or cat can claim a corner without pushing you to the edge. If your room is small, the UK small double is 15cm narrower and needs at least 2.4m x 2.8m.