Sleepeezee Memory 4000 Pocket Hybrid Ortho Single Mattress
The Sleepeezee Memory 4000 Pocket Hybrid Ortho is a medium firm hybrid that pairs memory foam with a 4000-spring system, made up of 1000 traditional pocket springs and 3000 mini comfort springs.
- Medium-firm support, soft pillow top
- Minimises partner disturbance
- Made in the UK
£679
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Sleepeezee Memory 4000 Pocket Hybrid Ortho Mattress
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Mattress details
Mattress
Sleepeezee Memory 4000 Pocket Hybrid Ortho Mattress
Size
Firmness
Medium Firm
Construction
Pocket Spring
Hybrid
Memory Foam
Depth (cm)
30
Layers
6
Layer Details
Pillow Top
An additional layer of plush fillings sewn onto the top, which means a softer initial feel when you lie down. You get cushioned comfort without changing the medium firm support underneath.
Knitted Cover
A soft knitted cover that's breathable, helping to keep you at an even temperature through the night.
Body-Contouring Memory Foam
Super-soft memory foam that adapts to your shape, easing pressure on your joints. Its slow response minimises bounce, so you're less likely to feel a partner moving.
Soft Polyester Comfort Layers
Soft polyester layers that add cushioning without compromising the medium firm feel.
High-Density Polyester Support Layer
A denser polyester layer beneath the comfort fillings, which helps the mattress hold its structure and last longer.
4000 Pocket Spring System
1000 traditional pocket springs combined with 3000 mini comfort springs. Each spring moves independently, which means support that follows your body rather than pushing back as one flat surface.
Layer details from mattressnextday.co.uk product page, September 2026.
Key benefits
- Fits the smallest bedrooms: At 3ft x 6ft 3in, the UK single leaves space for a desk, wardrobe and toy storage, and we suggest allowing at least 2.1m x 2.8m of floor space.
- Grown-up support for a growing child: The pocket springs move independently, which means a teenager's shoulders and hips get pressure relief rather than lying on a flat, unforgiving surface.
- Simple to rotate on your own: The pillow top means this mattress can't be flipped, but a single is far easier for one person to turn end to end than the UK double or UK king.
- A proper bed for guests: In a spare room that also serves as an office, a UK single with a medium firm hybrid feel gives visitors something more substantial than a sofa bed.
- Quiet for siblings sharing a room: The slow-response memory foam keeps the surface still, so a restless child in one UK single is less likely to creak and disturb a sibling nearby.
This size suits you if...
You're buying for one sleeper in a small or shared bedroom, such as a child's room where the bed has to leave space for a desk and storage, or you're kitting out a spare room or a loft conversion where a narrow footprint is all that will fit under the slope.
Consider another size if...
You share a bed, or you're an adult who sprawls and wants room to turn. We'd recommend the UK double instead, which gives 67.5cm each for two sharing and needs at least 2.6m x 2.8m.
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FAQ's
Will the Sleepeezee Memory 4000 UK single fit a bunk bed or mid sleeper?
It will fit the 90 x 190cm base of a standard single frame, but at 30cm deep it is thicker than many raised frames are designed for. A deep mattress can sit too close to the top of the guard rail. Check the frame maker's maximum mattress depth before ordering for a bunk, cabin bed or mid sleeper.
How much room do I need for a Sleepeezee Memory 4000 single?
We suggest at least 2.1m x 2.8m of floor space for a UK single. The mattress itself measures 90 x 190cm, or 3ft x 6ft 3in, so it suits box rooms, children's bedrooms and spare rooms where a larger bed would crowd out the wardrobe or desk.
Is a UK single Sleepeezee Memory 4000 long enough for a tall teenager?
The UK single is 190cm long, the same length as the UK double. If your teenager is already very tall, the UK king adds 10cm of length, though it is 60cm wider and we suggest at least 2.7m x 2.9m of floor space for it.
Should I buy the Sleepeezee Memory 4000 in a single or a double?
Choose the UK single if one person sleeps in it and floor space is tight. The UK double is 45cm wider, gives 67.5cm each for two sharing, and needs at least 2.6m x 2.8m. For a solo adult with room to spare, the UK double gives noticeably more space to turn over.
Is the Sleepeezee Memory 4000 single a good mattress for a child?
For an older child or teenager, the medium firm feel with a softer pillow top suits most sleepers. Younger children who run warm may find the memory foam holds a little heat. If it is going on a raised frame, confirm the 30cm depth works with the guard rail first.