MattressNextDay Simply Memory Pocket 1000 Hybrid Mattress
Mattress
MattressNextDay Simply Memory Pocket 1000 Hybrid Mattress
Size
Firmness
Construction
Depth (cm)
20
Layers
4
Layer Details
- Top layer. A body-contouring memory foam layer that moulds to your shape, which means personalised comfort at every point of contact. You'll feel a gentle cradling rather than lying on top of the mattress.
- EcoFoam® layer. A recycled, breathable EcoFoam® layer that lets your heaviest pressure points dip slightly into the surface. This helps position your back properly, and the breathability keeps things a little cooler than solid foam alone.
- Pocket springs. Up to 1000 individually pocketed springs that move independently, which means support targeted to key areas of your body rather than the whole bed shifting when you do. They deliver the medium-firm feel.
- Border. A foam-encapsulated border that maintains the mattress's structure right to the edge. You can spread out and use the full surface without a soft, saggy perimeter.
Layer details from mattressnextday.co.uk product page, September 2026.
- Fits compact rooms: At 3ft x 6ft 3in it leaves floor space for a desk, wardrobe and toy storage, and we suggest allowing at least 2.1m x 2.8m of room.
- A slim profile that suits raised frames: The 20cm depth sits comfortably below the guard rails on most bunk, cabin and mid-sleeper frames, where a taller hybrid often wouldn't.
- Sensible for children and teens: Medium-firm support with a hypoallergenic build suits a growing sleeper, and the budget price makes replacing it as they grow less painful.
- Usable edge to edge: The foam-encapsulated border keeps the perimeter supportive, which matters on a 90cm width where there's little room to shuffle away from a soft edge.
- Guest rooms and first flats: A low-cost, boxed single is an easy fix for a spare room that doubles as an office, or a student room where the frame comes provided.
This size suits you if...
You're buying for a child's room or a teenager, you need a slim mattress for a bunk or mid-sleeper frame, or you want an affordable single for a guest room or first flat where the bed shares space with a desk and storage.
Consider another size if...
You're an adult sharing the bed, or a solo sleeper who likes to spread out. This mattress also comes in a UK double, which gives 67.5cm each for two sharing; allow at least 2.6m x 2.8m of floor space for it.
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What size is the Simply Memory Pocket 1000 Hybrid in a UK single?
It measures 90 x 190cm, which is 3ft x 6ft 3in. That's the standard UK single, so ordinary single sheets and a 135 x 200cm single duvet fit without any adjustment, and it will drop straight into any standard single frame or divan base.
Will the UK single Simply Memory Pocket 1000 fit a bunk bed?
Its 90 x 190cm footprint matches standard bunk, cabin and mid-sleeper frames, and the 20cm depth is slim enough to stay below most guard rails. Do check your frame's maximum mattress depth before buying, as safety guidance varies between models, especially on top bunks.
How much room do I need for a single mattress?
We suggest allowing at least 2.1m x 2.8m of floor space, which covers the mattress plus room to walk round and open a wardrobe. That makes the UK single a workable fit under a loft slope or in a box room where a double simply wouldn't go.
Is this mattress a good choice for a child or teenager?
Yes, with a caveat. The medium-firm feel gives decent support for a growing back, it's hypoallergenic, and the price suits a bed that will be outgrown. Very light children may find it a little solid at first, though memory foam softens slightly with body heat.
Should I buy the UK single or the UK double of this mattress?
For one child, teen or occasional guest, the UK single is plenty and keeps floor space free. If an adult will sleep in it every night, or two people might share, the UK double is 45cm wider at the same length and gives 67.5cm each for two sharing.