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.
- Room to sprawl on your own: At 30cm wider than the UK single, the UK small double lets a solo sleeper change position on the firm surface without drifting towards the edge.
- Keeps compact rooms usable: Being 15cm narrower than the UK double, it leaves a little more floor beside the bed in a box room or loft conversion where every bit counts.
- A step up for a teenager: A teenager who has outgrown a UK single gains useful width, and the firm pocket spring support suits back and front sleepers well.
- Workable for guest couples: Couples staying the odd night will manage, and because the springs are individually pocketed, one guest turning over disturbs the other slightly less.
- Bedding is easy to find: At 4ft x 6ft 3in this is a standard UK size, so small double fitted sheets are widely available and a standard double duvet covers it comfortably.
This size suits you if...
You sleep alone and want more room than a UK single gives you, your bedroom is compact but still meets our suggested minimum of 2.4m x 2.8m, or you're kitting out a guest room where couples stay only now and then.
Consider another size if...
You share the bed with a partner every night. We'd recommend the UK double instead, which gives 67.5cm each and needs at least 2.6m x 2.8m.
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Is the Spring King Pocket Memory Ortho 1500 small double big enough for one adult?
For most solo adults, yes. The UK small double measures 120 x 190cm, which is 30cm wider than the UK single, so you have space to roll over and spread out. The one limit is length: taller sleepers may prefer the UK king, which is 10cm longer.
What size room do I need for a UK small double mattress?
We suggest allowing at least 2.4m x 2.8m for a UK small double. That leaves space to walk round the bed and open the door properly. In a narrow box room, measure the door swing and any wardrobe doors before you order, as those usually decide whether a bed fits comfortably.
Can a couple sleep on the Spring King Ortho 1500 in a UK small double every night?
It works for the occasional night, and the pocket springs help limit disturbance when one of you moves. For nightly sharing it will feel tight on a firm mattress like this one. The UK double gives 67.5cm each and needs at least 2.6m x 2.8m, so we'd suggest that instead.
Is a small double a good fit for a loft conversion bedroom?
Often it is. A sloping ceiling can leave little standing room at the sides of a wider bed, and the UK small double is 15cm narrower than the UK double, which helps. The mattress is 24cm deep, so check your frame height works under the lowest point of the ceiling.
Where can I compare prices for the Spring King Pocket Memory Ortho 1500 in a small double?
Use the retailer table on this page, which shows current listings for the UK small double specifically. Prices for this size are updated as retailers change them, so check back before buying rather than relying on a figure you saw a few days ago.