SleepSoul Nebula Orthopaedic Pocket 600 Mattress in a Box
Mattress
SleepSoul Nebula Orthopaedic Pocket 600 Mattress in a Box
Size
Firmness
Construction
Depth (cm)
22
Layers
4
Layer Details
- Top Layer. A layer of comfort quilting on the surface, which gives the firm mattress a slightly softer initial feel. It is what your skin actually touches, so it shapes that first impression when you lie down.
- Soft Foam. 1.5cm of soft foam sits beneath the quilting, providing deep comfort through consistent weight distribution. It is a thin layer, so expect cushioning rather than a plush, sink-in feel.
- Springs. 600 pocket springs conform to your body's shape, supporting you where you need it most. Because each spring is sewn into its own fabric pocket, SleepSoul says they help prevent the roll-together effect where couples drift into the middle.
- Non Slip Fabric. An anti-slip base for additional stability, which means the mattress is less likely to shift around on slats or a divan. A simple feature, but useful in practice.
Layer details from sleepsoul.co.uk product page, September 2026.
- Leaves room for the rest of the bedroom: The UK single's 90cm width means a wardrobe, desk and toy storage can share a compact room without the bed taking over the floor.
- Firm support for growing backs: SleepSoul rates the feel as firm, which tends to suit teenagers who sleep on their back or front and dislike sinking into the mattress.
- A moderate depth for raised frames: At 22cm deep it may suit some cabin beds and mid sleepers, although you should always check the frame maker's maximum mattress depth first.
- Stays put on slatted bunks: The non-slip base means the mattress is less likely to creep across slats, which is useful on a raised bed you can't easily reach to straighten.
- Pairs neatly in a twin guest room: Two UK singles side by side let guests who don't share a bed each have their own firm surface, with the same feel on both.
This size suits you if...
You're furnishing a child's or teenager's bedroom where the bed has to share space with a desk and wardrobe, you're kitting out a student room or first flat that came with a single frame, or you want two matching beds in a guest room for visitors who sleep separately.
Consider another size if...
You're a lightweight side sleeper, or you'd like more room to stretch out on your own. The UK small double would suit you better, and we suggest at least 2.4m x 2.8m of floor space for it.
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Will the SleepSoul Nebula UK single fit a cabin bed or mid sleeper?
The UK single matches the standard 90 x 190cm frame size, and the mattress is 22cm deep. Raised frames often set a maximum mattress depth so the guard rail stays high enough to be safe, so check that figure with the frame's maker before ordering rather than assuming it will fit.
Is a single SleepSoul Nebula a good choice for a child's bedroom?
For many children's rooms, yes. The compact footprint frees up floor space, and the firm feel suits children who sleep on their back. The comfort layer is slim, though, with 1.5cm of soft foam, so a light child who sleeps curled on their side may find it a little hard at the hips and shoulders.
How much space do I need for a UK single SleepSoul Nebula?
We suggest allowing at least 2.1m x 2.8m of floor space for a UK single. That leaves enough room to walk round the bed and open drawers, which matters most in a box room or a loft conversion where the sloping ceiling limits where the bed can go.
Should I buy the SleepSoul Nebula in a UK single or a UK small double?
The UK single is 30cm narrower than the UK small double and the same length. If you're an adult who sleeps alone and likes room to spread out, the UK small double is more comfortable, but we suggest at least 2.4m x 2.8m for it, so measure your room first.
Can I put two UK single Nebula mattresses in a guest room?
Yes, and it's a practical setup for friends or siblings who'd rather not share. Each person gets their own 90cm wide bed with the same firm feel. Make sure the room takes both beds plus a walkway between them before you order.