Emma Diamond Spring Free Deluxe Single Mattress
The Emma Diamond Spring Free Deluxe is a hybrid mattress with a medium soft feel, which means it offers a gentler, more cushioned surface than most hybrids, something side sleepers in particular tend to appreciate.
- Medium-soft feel for side sleepers
- Deep, generously built design
- Fits most UK bed frames
£899
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Emma Diamond Spring Free Deluxe Mattress
More available sizes
Mattress details
Mattress
Emma Diamond Spring Free Deluxe Mattress
Size
Firmness
Medium Soft
Construction
Foam
Pocket Spring
Hybrid
Depth (cm)
29
Layers
4
Layer Details
PolarLuxe cover
A polyester-based cover (80% polyester, 19% polyethylene, 1% elastane) that Emma describes as instantly cooling and refreshing, so the surface should feel cool when you lie down. It's removable and washable up to 40°C, and it's hypoallergenic.
Diamond Cool foam layer
A visco-elastic foam with graphite particles that Emma says moves excess heat away from your body. That should help you stay more comfortable if you tend to sleep warm.
HRXComfort foam layer
A medium soft foam that lets you settle into the mattress without sinking down too far. It gives the cushioned feel that side sleepers tend to like.
HRXSupport foam layer
A precision-engineered foam base that Emma guarantees will keep its shape for 10 years. It gives the softer layers above a steady foundation, and because this mattress has no pocket springs, the support comes from foam alone.
Layer details from emma-sleep.co.uk and furniturevillage.co.uk product pages, October 2026.
Key benefits
- A softer hybrid for lighter bodies: The medium soft feel offers more cushioning than most hybrids, which suits children, teens and lighter single adults who'd feel perched on a firmer mattress.
- Fits compact rooms: At 3ft wide (90 x 190cm), this size leaves floor space for a desk, wardrobe or toy storage, and we suggest allowing at least 2.1m x 2.8m.
- Kind to side sleepers: The gentler surface lets shoulders and hips settle in, which matters if you or your child naturally sleep on your side.
- Works as a welcoming guest bed: In a spare room that doubles as an office, a medium soft single gives occasional guests a comfortable night without dominating the space.
- Cheap, easy bedding: Standard single sheets and a 135 x 200cm duvet fit, and both are the most widely stocked and affordable bedding of any UK size.
This size suits you if...
You're buying for a child's or teenager's room where the bed shares space with storage and a desk, you're a single adult or student who prefers sinking into a mattress rather than lying on top of it, or you're setting up a spare room for a few guest nights a year. Side sleepers get the most from the medium soft feel.
Consider another size if...
You share the bed, or you're a taller teen or adult who wants space to spread out. Emma doesn't make this mattress in a UK small double, so we'd recommend the UK double instead.
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FAQ's
What are the dimensions of the Emma Diamond Spring Free Deluxe UK single?
It measures 90 x 190cm, which is 3ft x 6ft 3in, the standard UK one-person size. It's 29cm deep, so check your fitted sheets are the deep variety. If you're weighing it against the next size up, the UK single is 45cm narrower than the UK double.
Will the UK single Emma Diamond Spring Free Deluxe fit a bunk bed?
The footprint fits, since bunk beds take standard UK single mattresses. The 29cm depth is the concern: bunk, cabin and mid-sleeper frames set a maximum mattress depth so the guard rail still does its job, and 29cm exceeds many of those limits. Measure your frame's stated maximum before buying.
Is the Emma Diamond Spring Free Deluxe single a good choice for a child?
In terms of feel, yes: the medium soft surface suits lighter bodies, and children and teens often find firmer hybrids uncomfortable. The single size also frees up floor space in a room competing with toys, a wardrobe and a desk. Just avoid it on raised frames where the depth breaches the guard rail limit.
What size room do I need for a single mattress?
We suggest allowing at least 2.1m x 2.8m of floor space for a UK single, which gives you room to walk around the bed and open drawers. That makes it workable in box rooms, loft conversions with a narrow footprint, and shared children's rooms where two singles need a walkway between them.
Is a UK single wide enough for an adult?
At 90cm wide it's the standard adult one-person size, fine for students and solo sleepers who don't spread out. Two caveats: heavier adults may find the medium soft feel too yielding for proper spinal support, and restless sleepers often prefer the extra 45cm of width a UK double provides.