Last seen for £349 at Mattress Man on 27th October 2026
Silentnight Pocket Essentials 800 Double Mattress
The Silentnight Pocket Essentials 800 is a medium firm pocket spring mattress with a layer of memory foam, which means you get individual springs that respond to your body shape plus a softer surface feel on top.
- Minimises partner disturbance
- Memory foam adds gentle contouring
- Suits back & front sleepers
Save with the previous model
Some retailers still sell the earlier version of this mattress for less than the current model's best price.
More available sizes
Last seen for £409 at Mattress Man on 27th October 2026
Last seen for £489 at Mattress Man on 27th October 2026
Last seen for £349 at Mattress Man on 27th October 2026
Last seen for £265 at Mattress Man on 27th October 2026
Mattress details
Mattress
Silentnight Pocket Essentials 800 Mattress
Size
Firmness
Medium Firm
Construction
Pocket Spring
Depth (cm)
Layers
Layer Details
Key benefits
- The classic couples' size: At 135 x 190cm, or 4ft 6in x 6ft 3in, the UK double is the long established standard for two people sharing.
- Motion isolation matters more when sharing: With 67.5cm each for two people sharing, you sleep fairly close, so the 800 individual pocket springs help stop a partner's movement travelling across the bed.
- Fits where a king wouldn't: We suggest a room of at least 2.6m x 2.8m, which means it works in typical UK bedrooms with space left for wardrobes and drawers.
- Room for bedside tables both sides: The double's footprint usually leaves walking space and a table on each side of the bed, which a UK king often eats into.
- An affordable way to share: As an entry-level pocket spring model, it lets a couple get a proper double from a known name without a big outlay, useful when furnishing a whole home.
This size suits you if...
You share the bed as a couple and your room sits around the typical UK size, you're kitting out a first flat or a whole house on a spread budget and need a sensible double that does the basics well, or you're setting up a guest room that visiting couples will actually use.
Consider another size if...
You're a couple who find 67.5cm each a bit snug, or you sleep with a pet who claims a corner. We'd recommend the UK king instead: it's 15cm wider and 10cm longer, and we suggest a room of at least 2.7m x 2.9m for it.
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FAQ's
Is the Silentnight Pocket Essentials 800 double big enough for a couple?
Yes, for most couples. The UK double gives you 67.5cm each for two people sharing, and the 800 pocket springs move independently, so you're less likely to notice a partner turning over. Restless sleepers, or anyone used to spreading out, may prefer the UK king, which is 15cm wider and 10cm longer.
What room size do I need for the Silentnight Pocket Essentials 800 in a UK double?
We suggest at least 2.6m x 2.8m, with around 3m x 3m the comfortable norm. That allows space to walk round the bed and, in most rooms, bedside tables on both sides. If your room is closer to the minimum, the double is usually the sensible ceiling before a bed starts to dominate.
Should I get the Silentnight Pocket Essentials 800 in a double or a king?
The double suits couples in typical UK bedrooms and costs less, which helps if you're furnishing a whole home at once. The UK king is 15cm wider and 10cm longer, better for taller sleepers or couples who want more space, but we suggest a room of at least 2.7m x 2.9m for it.
How big is the double version of the Pocket Essentials 800?
It measures 135 x 190cm, which is 4ft 6in x 6ft 3in. That's 45cm wider than the UK single and the same length, and 15cm narrower and 10cm shorter than the UK king. Standard double sheets and a 200 x 200cm double duvet fit it, both stocked everywhere at every price.
Where can I buy the Pocket Essentials 800 in a UK double?
Compare the retailers listed on this page; the prices shown here are updated as retailers change them. Availability can differ between sizes of the same mattress, so it's worth checking delivery details for the double specifically, especially if access is tight, such as turning stairs in an older terrace.