Last seen for £318 at Amazon on 23rd June 2026
Emma Essential Small Double Mattress
The Emma Essential Mattress is one of Emma's more affordable options, available in five UK sizes from Single through to Super King.
- Cover helps regulate temperature
- Zoned support where you need it
- Built with durable foam
Save with the previous model
Some retailers still sell the earlier version of this mattress for less than the current model's best price.
More available sizes
Last seen for £318 at Amazon on 23rd June 2026
Last seen for £318 at Amazon on 23rd June 2026
Last seen for £438 at Emma on 23rd June 2026
Last seen for £518 at Emma on 23rd June 2026
Last seen for £478 at Amazon on 23rd June 2026
Mattress details
Mattress
Emma Essential Mattress
Size
Firmness
Construction
Foam
Rolled
Depth (cm)
Layers
Layer Details
Cover
Temperature-regulating top cover
Top Layer
Breathable Hybrid foam
Layer 2
Durable and supportive zoned HRX foam
Key benefits
- Real stretching room for one: At 120cm wide, the UK small double is 30cm wider than the UK single, which means a solo adult can shift position freely without an arm hanging off the edge.
- Fits rooms a double overwhelms: It's 15cm narrower than the UK double, which can be exactly the margin that keeps a wardrobe door opening or leaves a walkway in a loft conversion.
- A sensible guest room choice: Couples can share it for occasional weekend stays, so a small second bedroom in a home or holiday let gets its largest workable bed.
- Budget pairing that makes sense: The Emma Essential is one of Emma's entry-level models, and a small double is often bought for a guest room or first flat where spending less is the point.
- Easy bedding and frames: The 4ft small double is a standard UK size, so fitted sheets and bed frames are straightforward to find on the high street.
This size suits you if...
You sleep alone and have outgrown a UK single, perhaps a teenager whose room can't spare the floor space a full double demands, or you're furnishing a box room, studio or rental second bedroom where the extra 15cm of a UK double simply won't fit. It also suits a guest room that hosts couples a few weekends a year rather than every night.
Consider another size if...
You share the bed with a partner every night, because 120cm is a squeeze for two long term. We'd recommend the UK double instead, or the UK king if your room allows it.
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Did you know? On Mattress Unboxed we have over 1,000 different mattresses to suit all types of sleepers. View all mattresses.
FAQ's
What are the dimensions of the Emma Essential small double?
The Emma Essential Mattress in a UK small double measures 120 x 190cm, or 4ft x 6ft 3in. That makes it 30cm wider than the UK single and 15cm narrower than the UK double, the same length as both.
What room size do I need for a small double mattress?
We suggest allowing at least 2.4m x 2.8m. That gives you space to walk around the bed and open drawers or doors. In a loft conversion or box room, measure the usable floor rather than the full footprint, as sloping ceilings can eat into it.
Is the Emma Essential small double good for couples?
For occasional nights, yes. Couples can share a small double comfortably enough for a weekend stay, which is why it suits guest rooms and holiday lets. As an everynight bed for two, 120cm feels tight, and we'd point you to the UK double or UK king instead.
Should I get the Emma Essential in a small double or a double?
It usually comes down to your room. The UK small double is 15cm narrower than the UK double, so if a 4ft 6in frame would block a door or leave no space to stand, the small double is the better fit. Sleeping alone, you're unlikely to miss the width.
Where can I buy the Emma Essential Mattress in a small double?
Availability changes, so the simplest route is the live price table on this page, which is updated as retailers change their listings. Compare the retailers shown there rather than relying on a fixed list, as stock in this size can move quickly.


