Last seen for £299 at Silentnight on 30th September 2026
Silentnight Essentials Pocket 600 Double Sided Double Mattress
The Silentnight Essentials Pocket 600 is a medium-feel budget pocket spring mattress with 600 zoned Mirapocket springs.
- Zoned springs spread weight evenly
- Double-sided, turn to extend its life
- 60-night trial & 5-year guarantee
Save with the previous model
Some retailers still sell the earlier version of this mattress. These is where it costs less than the current model's best price.
More available sizes
Last seen for £299 at Silentnight on 30th September 2026
Last seen for £229 at Silentnight on 23rd June 2026
Last seen for £349 at Silentnight on 30th September 2026
Last seen for £239 at Silentnight on 30th September 2026
Mattress details
Mattress
Silentnight Essentials Pocket 600 Double Sided Mattress
Size
Firmness
Medium
Construction
Pocket Spring
Depth (cm)
26
Layers
4
Layer Details
Cover
Top Layer
Comfort layer
Layer 2
Single layer of 600 pocket
Key benefits
- The classic couples' footprint: At 135 x 190cm (4ft 6in x 6ft 3in), the UK double is the long-standing standard for two sharing, and it fits most UK bedrooms without dominating them.
- 67.5cm each for two people sharing: Two sleepers get 67.5cm each across the width, which is workable for most couples, although restless pairs may prefer more room.
- Zoned springs help when sharing: The 600 zoned Mirapocket springs respond to each sleeper separately, which means one partner turning over is less likely to wake the other.
- Room left for the rest of the furniture: We suggest a room of at least 2.6m x 2.8m, which in most bedrooms still leaves space for bedside tables on both sides.
- A flippable double is manageable: Being double sided, it needs turning regularly, and at this size two people can flip it between them without much of a struggle.
- Easy and cheap to dress: Double sheets and a 200 x 200cm double duvet are stocked everywhere at every price, useful if you're kitting out a whole home at once.
This size suits you if...
You're a couple who want a proper shared bed in an ordinary-sized UK bedroom, and the budget needs to stretch, perhaps because you're furnishing a first home and this room is one of several. It also suits a guest room that hosts visiting couples, where a sensible, uncomplicated pocket spring mattress does the job without spending main-bedroom money.
Consider another size if...
You sleep alone in a smaller second bedroom and the double would squeeze out the wardrobe and drawers. The UK single would suit you better, and it's 45cm narrower with the same length, so we suggest a room of at least 2.1m x 2.8m.
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FAQ's
Is the Silentnight Essentials Pocket 600 double big enough for a couple?
For most couples, yes. Two people sharing get 67.5cm of width each, and the 600 zoned pocket springs cushion movement so a partner shifting position is less disruptive. If either of you sleeps restlessly or you share with a dog or cat claiming a corner, the UK king adds 15cm of width and 10cm of length.
What room size do I need for the Pocket 600 in a UK double?
We suggest at least 2.6m x 2.8m, with around 3m x 3m the comfortable norm. That allows walking space on both sides and, in most rooms, bedside tables too. If your bedroom is smaller than that, the UK small double is 15cm narrower at the same length, and we suggest at least 2.4m x 2.8m for it.
Is the Pocket 600 double easy to get upstairs?
Silentnight doesn't publish a weight for this mattress, so check the brand's own guidance before delivery day. As a pocket spring design it won't roll or fold, so measure the tight points first: turning stairs in older terraces and narrow new build landings catch people out. Two people can carry a double between them.
Can two people flip the Pocket 600 in a double size?
Yes, and you should, since the double-sided design is the main reason this mattress wears evenly. At 135 x 190cm it's an awkward but manageable job for two, so agree to do it together regularly. If you'd struggle to flip it, you lose much of the benefit of this particular model.
Should I get the Pocket 600 in a double or a king?
The UK double suits most couples and most rooms. The UK king is 15cm wider and 10cm longer, which helps taller sleepers and restless pairs, but we suggest at least 2.7m x 2.9m of room for it. If a king would leave you squeezing past the bed every morning, the UK double is the better call.