Wentworth Mercer Natural Pocket 1500 Single Mattress
The Wentworth Mercer Natural Pocket 1500 is a medium to firm pocket spring mattress, handcrafted in the UK.
- Minimises partner disturbance
- Cotton wicks away moisture
- Holds its shape without dips
£404
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.
Wentworth Mercer Natural Pocket 1500 Mattress
More available sizes
Mattress details
Mattress
Wentworth Mercer Natural Pocket 1500 Mattress
Size
Firmness
Medium Firm
Construction
Pocket Spring
Wool
Natural
Depth (cm)
29
Layers
3
Layer Details
Cotton and Polyester Blend
Two layers blending cotton and polyester fibres, which means cushioned comfort where your body meets the mattress. The cotton wicks away moisture while the polyester increases airflow, helping you stay cooler through the night.
Soft White Fibres
Two layers of soft white fibres that enhance breathability and add durability. In practice, this helps the mattress hold its shape rather than developing dips over time.
Pocket Springs
1500 responsive pocket springs, each sewn into its own fabric pocket before being bonded together, so they can move individually as well as working as a team. This means the springs follow your shape and limit motion transfer from a restless partner.
Layer details from mattressonline.co.uk product page, September 2026.
Key benefits
- Leaves room for everything else: At 90cm wide, the UK single sits against one wall and still leaves floor for a desk, a wardrobe and somewhere to play.
- Two beds in one room: In a room shared by siblings, or a guest room set up with two beds, the narrow footprint can leave a clear walkway between the two.
- Support for growing bodies: The medium firm pocket spring core keeps a child or teenager's spine supported, and the fibre layers on top take the edge off without letting them sink.
- Cooler for warm sleepers: Cotton in the comfort layers draws moisture away, which helps a teenager who runs hot sleep more comfortably in a small, warm bedroom.
- Check it against raised frames: The mattress is 29cm deep, so measure it against the maximum mattress depth on any bunk, cabin or mid sleeper frame before you order.
This size suits you if...
You're buying for a child or teenager whose room also has to hold a desk and storage, or you're kitting out a spare room, perhaps a home office, where guests sleep on their own. It also suits a student or first flat where the frame is already there and only the mattress is missing.
Consider another size if...
Two people will share the bed, or the sleeper wants space to spread out. 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.
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 Natural Pocket 1500 UK single fit a bunk bed or cabin bed?
The UK single's 90 x 190cm footprint matches the standard size most bunk and mid sleeper frames are built for. Depth is the thing to check. This mattress is 29cm deep, and raised frames usually state a maximum mattress depth so the guard rail stays high enough. Compare that figure with the frame maker's guidance before buying.
What size bedroom do I need for a UK single Natural Pocket 1500?
We suggest allowing at least 2.1m x 2.8m of floor space. That leaves you room to get in and out of bed and open drawers or a wardrobe. In a loft conversion, put the bed along the lower wall under the slope, so the narrow side faces into the room.
Is a UK single long enough for a tall teenager?
The UK single is 190cm long, which suits most teenagers. If your teenager is already very tall, or still growing fast, the UK king is 10cm longer, although it is also 60cm wider and needs at least 2.7m x 2.9m of room. The UK double adds width but no length.
Can two people share the Wentworth Mercer Natural Pocket 1500 in a single?
We wouldn't recommend it. At 90cm wide, the UK single is a one person bed. For two sharing, the UK double gives 67.5cm each and the UK king gives 75cm each. Individually pocketed springs limit the movement you feel from a partner, but they can't create extra width.
Is the Natural Pocket 1500 UK single a good choice for a guest room with two beds?
Yes, for most guests. Two UK singles let friends or siblings stay without sharing a bed. The medium firm feel suits back sleepers and most people who like a supportive surface. A lightweight guest who sleeps on their side may find it a little firm, but for a few nights that is rarely a problem.