Last seen for £239 at Mattress Man on 4th October 2026
Silentnight Essentials Pocket 600 Single Mattress
The Silentnight Essentials Pocket 600 is a medium-feel pocket spring mattress built around 600 zoned Mirapocket springs, which means each spring moves independently to spread your weight evenly and support spinal alignment.
- Zoned pocket spring support
- Medium feel suits most positions
- 60-night trial & 5-year guarantee
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 £319 at Mattress Man on 25th October 2026
Last seen for £239 at Mattress Man on 4th October 2026
Mattress details
Mattress
Silentnight Essentials Pocket 600 Mattress
Size
Firmness
Medium
Construction
Pocket Spring
Depth (cm)
24
Layers
5
Layer Details
Cover
Top Layer
Silentnight comfort layer
Layer 2
Single layer of 600 pocket
Key benefits
- Fits where space is tight: At 90cm wide, it leaves room for a desk, wardrobe and toy storage in a child's bedroom rather than swallowing the floor.
- Suits bunk and cabin frames: The 24cm depth is shallow enough for most raised frames, though you should check the maximum mattress depth your bunk or mid sleeper allows.
- Grows with a child: Zoned Mirapocket springs support spinal alignment as a child becomes a teenager, which means the mattress keeps doing its job through growth spurts.
- Practical for spare rooms: In a study that doubles as guest space, the UK single's narrow footprint keeps the room usable between visits.
- Cheap, easy bedding: Single sheets and duvets are the most widely stocked and lowest priced of any size, which keeps ongoing costs down.
This size suits you if...
You're buying for a child's or teenager's room where the bed has to share space with a desk and storage, you need a mattress for a bunk, cabin or mid sleeper frame, or you're kitting out a spare room, student room or first flat where the frame is a single and the budget is real.
Consider another size if...
You're an adult who moves around at night, or two of you will ever share the bed. At 90cm wide the UK single is snug for a restless adult, so we'd recommend the UK small double instead; allow at least 2.4m x 2.8m 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
Will the Silentnight Essentials Pocket 600 UK single fit a bunk bed?
It should fit most bunk, cabin and mid sleeper frames, as the UK single is the standard size these frames are built around and the 24cm depth is on the shallower side. Do check your frame's maximum mattress depth first, since raised frames often specify a limit so the guard rail stays high enough.
How much room do I need for a UK single mattress?
The mattress itself is 90 x 190cm, and we suggest allowing at least 2.1m x 2.8m of floor space so you can get around the bed comfortably. That makes the UK single an easy fit in box rooms, lofts with a narrow usable strip under the slope, and children's rooms already busy with furniture.
Is the Pocket 600 in a UK single good for a child or teenager?
Yes, with a caveat. The 600 zoned pocket springs and medium feel give growing backs proper support, and the price sits at the affordable end of Silentnight's range. Heavier teens wanting a plusher surface may find the fibre comfort layer a little modest, but for most children it's a sensible, durable choice.
Can an adult sleep comfortably on this single mattress?
A solo adult can, and plenty do in student rooms and first flats where the frame is already a single. At 90cm wide it's the standard one-person size, though if you spread out or move a lot in your sleep, the UK small double is 30cm wider and the same length, which makes a noticeable difference.
Is the UK single Pocket 600 suitable for a spare room?
It's a practical choice for a spare room or a study that doubles as guest space, because the narrow footprint keeps the room workable day to day. Guests get real pocket spring support rather than a basic open coil. If your spare room hosts couples, consider the UK double, allowing at least 2.6m x 2.8m for it.