Spring King Wool Luxury Soft 3000 Single Mattress
The Spring King Wool Luxury Soft 3000 is a soft pocket sprung mattress with deep wool fillings, which means a gently cushioned, sink-in feel rather than a firm, on-top-of-the-bed one.
- Soft, deep wool cushioning
- Warm in winter, fresh in summer
- Minimises partner disturbance
£359
Get the lowest price we've found
Save with the previous model
Some retailers still sell the earlier version of this mattress for less than the current model's best price.
Spring King Wool Luxury Soft 3000 Mattress
More available sizes
Mattress details
Mattress
Spring King Wool Luxury Soft 3000 Mattress
Size
Firmness
Soft
Construction
Pocket Spring
Wool
Depth (cm)
28
Layers
3
Layer Details
Quilted Cover
The cover is stitched together with the fillings beneath it, creating a patterned comfort quilt layer. In practice, that means the soft surface feel is built in rather than sitting loose on top.
Wool
Deep layers of plush wool cushion your body at every point of contact. Wool insulates well, keeping you warm and snug, while its breathable structure helps prevent overheating.
Pocket Springs
Each spring sits in its own fabric pocket and moves independently, a little like piano keys. This targets pressure relief precisely, adjusting to your movements and how your weight is distributed.
Layer details from mattressnextday.co.uk product page, September 2026.
Key benefits
- Room for the rest of the furniture: The UK single is 90cm wide, which means a child's room can keep a desk and a chest of drawers alongside the bed without everyone squeezing past.
- A soft bed for one: One person gets the whole sink-in wool surface to themselves, so the gentle cushioning never has to suit a partner with different tastes.
- Easy to fit under a loft slope: A 90cm width tucks neatly under the low side of a loft conversion, so you have more choice over where the bed goes in a sloped room.
- A comfortable spare room that stays an office: Guests get a properly cushioned wool mattress, and on the other nights of the year the UK single leaves most of a study-cum-spare-room free for working.
- A modest space guide: We suggest allowing at least 2.1m x 2.8m of floor space, which is the smallest room guidance of any size this mattress comes in.
This size suits you if...
You sleep alone and prefer a soft, cushioned feel, you're kitting out a child's or teenager's room where floor space matters, or you need a comfortable bed for a spare room that also serves as a home office.
Consider another size if...
You share the bed, or you want more width to spread out. The UK small double would suit you better: it is 30cm wider at the same length, and we suggest at least 2.4m x 2.8m for it.
Similar Mattresses in This Price Range
Did you know? On Mattress Unboxed we have over 1,000 different mattresses to suit all types of sleepers. View all mattresses.
FAQ's
Can I use the Spring King Wool Luxury Soft 3000 UK single on a bunk bed?
The UK single is the right width and length for most bunk, cabin and mid sleeper frames. The concern is height, because this mattress is 28cm deep. That is a generous profile, and it can reduce how far the safety rail rises above the sleeper. Check the frame maker's maximum mattress depth before you order.
Is a soft UK single mattress a good idea for a child?
It depends mostly on how your child sleeps. The soft wool feel suits side sleepers well, because it lets the shoulders and hips sink in slightly. A child who sleeps mainly on their front would probably do better on something firmer. If you're buying for a teenager who prefers a firm bed, this is the wrong feel for them.
What size bedroom do I need for a Spring King Wool Luxury Soft 3000 single?
We suggest a room of at least 2.1m x 2.8m for the UK single. That leaves space to walk around the bed and open a wardrobe. It is the most forgiving space guidance in this range, which makes the UK single the easiest size to fit in a box room or a student flat.
UK single or UK small double for a teenager?
The UK small double is 30cm wider and the same length, so a growing teenager gets more room to turn over without their feet gaining any extra space. We suggest at least 2.4m x 2.8m for the UK small double, compared with 2.1m x 2.8m for the UK single. If the room is tight, stay with the UK single.
Is a UK single long enough for a tall adult?
The UK single is 190cm long, or 6ft 3in. Most adults fit comfortably, although very tall sleepers may find their feet near the edge. The UK king and UK super king are both 10cm longer than the UK single, but they are much wider too, so they only make sense if the room can take them.