Spring King Pocket Memory Ortho 1500 Mattress
Mattress
Spring King Pocket Memory Ortho 1500 Mattress
Size
Firmness
Construction
Depth (cm)
24
Layers
3
Layer Details
- Knitted Cover. A soft knitted cover that's breathable, which means heat can escape rather than build up around you. It helps keep you at an even temperature through the night.
- Memory Foam. This layer adds a soft, cushioning feel, gently moulding to your shape as you settle in. It takes the edge off the firm support underneath.
- Pocket Springs. Individually pocketed springs move independently from one another, so the mattress responds to your body's movements more effectively. In practice, that means support where you need it and less disturbance from a restless partner.
Layer details from mattressnextday.co.uk product page, September 2026.
- Leaves floor space free: At 3ft x 6ft 3in, the UK single fits beside a desk or wardrobe, and we suggest a room of at least 2.1m x 2.8m.
- Firm support for back and front sleepers: Pocket springs under a memory foam layer give a firm, even surface, which suits teenagers and adults who sleep on their back or front.
- Sensible for a guest room with two beds: Two UK singles in a spare room let friends or siblings stay over without sharing, and each person sleeps on their own set of springs.
- Fits a frame you already have: If a student room or first flat comes with a standard UK single frame but no mattress, you can buy this on its own without replacing the bed.
- Cooler in a small room: The knitted cover lets heat escape, which helps in a small bedroom or loft conversion where warm air tends to gather under the ceiling.
This size suits you if...
You sleep alone and like a firm surface, you're furnishing a child's or teenager's room where the bed has to share space with a desk and wardrobe, or you're setting up a spare room that works as a home office most of the week.
Consider another size if...
You share the bed with a partner, or you spread out and would find 90cm cramped. We'd recommend the UK double instead, which gives 67.5cm each for two sharing; we suggest 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.
Will the Spring King Pocket Memory Ortho 1500 single fit a bunk bed or mid sleeper?
The UK single is the standard size for bunk beds and mid sleepers, but this mattress is 24cm deep. Raised frames often set a maximum mattress depth so the guard rail stays high enough above the sleeper, so check your frame maker's guidance before ordering.
Is the Spring King Pocket Memory Ortho 1500 single too firm for a child?
It's a firm mattress, so a lightweight child who sleeps on their side may feel a little pressure at the hips and shoulders. A child or teenager who sleeps on their back or front is likely to be comfortable, and across verified owner reviews the firm feel is described as supportive rather than harsh.
Is a UK single wide enough for an adult?
At 90cm wide, a UK single suits an adult who sleeps fairly still. If you sprawl or turn a lot, the UK single is 30cm narrower than the UK small double, which keeps the same length, and we suggest at least 2.4m x 2.8m for the UK small double.
What size room do I need for a UK single Spring King Pocket Memory Ortho 1500?
We suggest at least 2.1m x 2.8m of floor space for the UK single. That allows room to walk round the bed and still fit a small desk or chest of drawers, which makes it a practical choice for box rooms and spare rooms that double as offices.
Is the UK single long enough for a tall teenager?
The UK single is 190cm long, or 6ft 3in, which suits most teenagers. For a very tall sleeper whose feet reach the end, the UK single is 10cm shorter than the UK king, although the UK king needs a much larger room, and we suggest at least 2.7m x 2.9m for it.