Sleepeezee Jessica 1800 Pocket Gel Mattress
Mattress
Sleepeezee Jessica 1800 Pocket Gel Mattress
Size
Firmness
Medium Firm
Construction
Depth (cm)
27
Layers
4
Layer Details
- Knitted cover. A soft knitted finish that adds cosiness while allowing air to move through, which means the surface stays fresher overnight. It is designed for breathability rather than heat retention.
- StayCool™ Gel. A 3cm gel layer with an open cell structure, which creates space for airflow and helps disperse excess body heat. This is the layer doing most of the work if you normally sleep warm.
- Memory Foam. A 3cm layer that gently moulds to your shape, which means pressure eases at the shoulders and hips where you sink in most. Helpful if you wake with aches from firmer surfaces.
- Pocket Springs. 1800 individual pocket springs in total: 1000 SoftTech mini springs that contour closely to your body, plus 800 traditional pocket springs beneath for support. Because each spring moves independently, you should feel less disturbance from a partner turning over.
Layer details from mattressonline.co.uk product page, September 2026.
- Leaves room for everything else: At 90cm wide, the UK single leaves space beside the bed for a desk, a wardrobe or toy storage, which matters in a child's room where every bit of floor counts.
- Cooling for warm young sleepers: The 3cm StayCool gel layer has an open cell structure, which means a teenager who kicks the duvet off at night has somewhere for body heat to go.
- Full support in a compact size: The UK single keeps the 1000 mini springs and 800 traditional springs, so a solo adult in a small room still gets contouring on top and firmer support beneath.
- Easier to handle than larger sizes: Owners say the mattress is heavy, but the UK single is the smallest size, so turning it or carrying it up to a loft room is a little more manageable.
- Two can share a guest room: Its narrow footprint means you can fit a pair of UK singles into a spare room, which gives two guests who aren't a couple a bed each.
This size suits you if...
You sleep alone and want memory foam comfort without overheating, or you're furnishing a child's or teenager's room where the bed has to share space with a desk and storage, or your spare room also serves as a study and needs a guest bed with a small footprint.
Consider another size if...
You share the bed with a partner, or you're an adult who likes room to spread out. We'd recommend the UK double instead, which gives 67.5cm each for two sharing; allow at least 2.6m x 2.8m.
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Can the Sleepeezee Jessica 1800 UK single go on a bunk bed or cabin bed?
It can fit a frame made for a UK single, which is 90 x 190cm, but the mattress is 27cm deep. Many bunks, cabin beds and mid sleepers set a maximum mattress depth so the guard rail stays high enough to be safe. Check the frame maker's guidance before you buy.
What room size do I need for a Jessica 1800 UK single?
We suggest at least 2.1m x 2.8m of floor space for a UK single. That leaves room to walk around the bed and open a wardrobe door. Our guidance is a comfortable minimum rather than a rule, so measure where the door and any sloping ceiling sit too.
Is a UK single Jessica 1800 long enough for a tall adult?
The UK single is 190cm long (3ft x 6ft 3in), the same length as the UK double. If your feet reach the end, the UK king is 10cm longer and gives 75cm each for two sharing. We suggest at least 2.7m x 2.9m for a UK king.
Is the Sleepeezee Jessica 1800 heavy to move in a single size?
Across verified owner reviews, people describe this mattress as heavy, so plan on help if you rotate it. The UK single is the smallest size in the range, which makes it the easiest to handle. Getting it up narrow stairs or into a loft conversion should still take two people.
Should a teenager have the Jessica 1800 in a UK single or a UK small double?
The UK single suits a teenager in a smaller bedroom who needs floor space for a desk. If the room allows it, the UK small double is 30cm wider and the same length, which gives more room to sprawl. We suggest at least 2.4m x 2.8m for the UK small double.