Spring King Memory Ortho Single Mattress
The Spring King Memory Ortho is a hybrid of sorts: open coil springs topped with memory foam, finished with a breathable knitted cover.
- Firm support that holds you level
- Eases pressure at hips & shoulders
- Breathable cover lets heat escape
£169
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Spring King Memory Ortho Mattress
More available sizes
Mattress details
Mattress
Spring King Memory Ortho Mattress
Size
Firmness
Firm
Construction
Foam
Hybrid
Memory Foam
Open Coil Spring
Depth (cm)
26
Layers
3
Layer Details
Cover
A soft knitted cover that is breathable, which means heat can escape rather than build up under you. It helps keep you at a more even temperature through the night.
Memory Foam
This layer moulds to your body, which means pressure points such as hips and shoulders get some relief while you still feel supported. It is where the orthopaedic comfort of the mattress comes from.
Open Coil Springs
Interlaced coils of high-tensile steel joined together in a lattice. Because the coils are connected, the surface responds as one unit, giving broad, even body support with a traditionally firm feel.
Layer details from mattressnextday.co.uk product page, September 2026.
Key benefits
- A small footprint: We suggest allowing at least 2.1m x 2.8m, which means a child's room can still fit a wardrobe, a desk and some toy storage alongside the bed.
- Motion transfer matters less: Open coils move as one connected unit, which can bother couples, but a single sleeper has nobody beside them to feel it.
- Two singles for guests: A pair of UK singles in a spare room lets two friends or siblings sleep apart, which a shared double cannot offer.
- Firm support for growing bodies: The high-tensile steel lattice holds the whole surface level, which suits teenagers who want a supportive feel rather than a soft sink-in bed.
- Cooler memory foam: The knitted cover is breathable, so heat can escape, which helps in a small, warm bedroom or a stuffy room at the top of the house.
- Room under a sloping ceiling: The 90cm width gives a narrow footprint that can tuck along the low side of a loft conversion without blocking the usable floor.
This size suits you if...
You sleep alone and want firm, even support, or you're furnishing a child's or teenager's room where the bed shares space with a desk and storage. It also suits a spare room that works as a study most of the week, where a compact bed leaves space for a desk.
Consider another size if...
You share the bed, or you're an adult who sprawls and wants more room to turn. We'd recommend the UK small double instead, which is 30cm wider; allow at least 2.4m x 2.8m for it.
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FAQ's
Is the Spring King Memory Ortho UK single too deep for a mid sleeper or bunk bed?
The mattress is 26cm deep. Raised frames such as bunks, cabin beds and mid sleepers often set a maximum mattress depth so the guard rail stays high enough to be safe, so check the frame maker's guidance before buying. On a standard divan or bedstead, the depth is rarely an issue.
What size room do I need for a Spring King Memory Ortho UK single?
We suggest at least 2.1m x 2.8m. That leaves space to walk around the bed and open drawers or a wardrobe. If two siblings share a room with two UK singles, allow extra width for a walkway between the beds.
Is the Spring King Memory Ortho UK single good for a child?
It suits children and teenagers who like a firm, supportive bed. Very light side sleepers, which includes many younger children, may find it a little unyielding at the shoulder and hip, although the memory foam layer does ease some of that pressure.
Can two people sleep on a UK single Spring King Memory Ortho?
It's designed for one person. For two people sharing, the UK double gives 67.5cm each and is the same length; we suggest at least 2.6m x 2.8m of floor space for it. The connected open coils would also pass movement between two sleepers on a narrow bed.
Should one adult choose a single or small double Spring King Memory Ortho?
The UK single is 30cm narrower than the UK small double and the same length. If you sleep still and your room is small, the UK single is enough. If you spread out, the UK small double gives you more room, but allow at least 2.4m x 2.8m for it.