Sleepeezee Jessica 800 Pocket Support Small Double Mattress
The Sleepeezee Jessica 800 Pocket Support is a hybrid mattress with 800 pocket springs and a gel foam layer, which means you get responsive support with a slightly cooler feel than traditional memory foam.
- Gel foam sleeps cooler
- Minimises partner disturbance
- Handcrafted in the UK
£729
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.
Sleepeezee Jessica 800 Pocket Support Mattress
More available sizes
Last seen for £656 at Mattress Online on 25th June 2026
Mattress details
Mattress
Sleepeezee Jessica 800 Pocket Support Mattress
Size
Firmness
Medium Firm
Construction
Foam
Pocket Spring
Hybrid
Gel
Depth (cm)
27
Layers
3
Layer Details
Platinum Breathable™ layer
A temperature-regulating top layer that helps your body stay at a comfortable temperature through the night. In practice, that means less waking up too hot or too cold.
Gel Foam
A breathable foam that sleeps cooler than traditional memory foam, which means you get cushioning for aches and pains without the trapped heat. It gives the sleep surface a fresher feel.
Pocket Springs
800 individual pocket springs mould to your body shape, relieving pressure and delivering that medium to firm support. Because each spring moves independently, you'll feel less disturbance when a partner shifts position.
Layer details from mattressonline.co.uk product page, September 2026.
Key benefits
- Space to sprawl on your own: The UK small double is 30cm wider than the UK single, which means you can lie with an arm flung out or roll over without meeting the edge.
- Suits a smaller bedroom: We suggest a room of at least 2.4m x 2.8m, so the UK small double can go into a second bedroom or loft conversion where bigger beds would crowd the floor.
- Calmer on the odd shared night: The 800 pocket springs move independently, which means a couple staying for the weekend will feel a little less of each other shifting position.
- No extra floor at the foot: The UK small double and the UK single are both 190cm long, so upgrading from a single gains you width while the bed reaches no further into the room.
- Easy to find bedding for: 4ft is a standard UK width, which means fitted sheets and bed frames for a UK small double are simple to find.
This size suits you if...
You sleep alone and like room to stretch out, a teenager has outgrown a UK single but their bedroom can't spare much more floor, or you're kitting out a guest room where couples stay now and then rather than every night.
Consider another size if...
You share with a partner every night and both want room to move. We'd recommend the UK super king instead, which gives 90cm each; we suggest at least 3m x 2.9m 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
Is the Sleepeezee Jessica 800 UK small double big enough for two adults?
For the occasional night, yes, and the independent pocket springs help limit the disturbance when one of you turns over. For every night, it will feel snug for most couples. If you share nightly, the UK super king gives 90cm each, although we suggest a room of at least 3m x 2.9m for it.
Jessica 800 UK small double or UK single for a teenager?
The UK small double is 30cm wider than the UK single and exactly the same length, so the extra room is all sideways. We suggest at least 2.4m x 2.8m for the UK small double, against at least 2.1m x 2.8m for the UK single. If the bedroom clears that, the wider bed will last a growing teenager longer.
What room size do I need for a Sleepeezee Jessica 800 UK small double?
We suggest allowing at least 2.4m x 2.8m. That leaves enough space to get in and out comfortably, open the door fully and reach a wardrobe. This is our own guidance rather than Sleepeezee's, so measure your room and the doorway before you order.
Will a UK small double fit in a loft conversion?
Often, yes. At 120cm wide, the UK small double leaves more floor either side than a larger bed, which helps where a sloping ceiling limits standing room. Check that the side you climb in from has enough headroom, and keep to our suggested minimum of 2.4m x 2.8m.
Is the Jessica 800 UK small double a good option when downsizing from a double?
It can be. The UK small double is 15cm narrower than a UK double and the same length, so you give up a little width and nothing at the foot. Since Sleepeezee doesn't offer the Jessica 800 in a UK double, the UK small double is the closest size in this range.