Mlily Lite Synergy Memory Pocket 2000 Double Mattress in a Box
The Mlily Lite Synergy Memory Pocket 2000 is a boxed mattress from Mlily, available in UK Single, Double, King and Super King.
- Memory foam over pocket springs
- Single, Double, King & Super King
- Boxed for easier handling
£378.86
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.
Mlily Lite Synergy Memory Pocket 2000 Mattress in a Box
More available sizes
Mattress details
Mattress
Mlily Lite Synergy Memory Pocket 2000 Mattress in a Box
Size
Firmness
Firm
Construction
Foam
Pocket Spring
Rolled
Memory Foam
Depth (cm)
Layers
4
Layer Details
Memory foam layer
A 2cm memory foam layer that gently contours to your shape. It eases pressure points a little, though at this depth the contouring is light, which fits the firm feel.
Comfort support foam
A 3.5cm layer of high density comfort foam that gives adaptive support. It sits between the memory foam and the springs, so you get a steadier feel underneath the top layer.
Pocket spring core
Several rows of small diameter pocket springs, each in its own cloth sleeve, with 2000 springs in total. Because each spring works on its own, the mattress responds to your shape and movement rather than moving as one piece.
Flex support foam base
A foam base layer that provides corner to corner support. It gives the springs a stable platform and helps the whole mattress feel even across its surface.
Layer details from bedsonlegs.co.uk and archerssleepcentre.co.uk product pages, October 2026.
Key benefits
- The classic couples' footprint: At 135 x 190cm, the UK double has long been Britain's standard shared size, giving 67.5cm each for two people sharing.
- Fits most UK bedrooms: We suggest a minimum room of 2.6m x 2.8m, which most doubles bedrooms meet, leaving space for bedside tables on both sides.
- Boxed delivery for awkward access: It arrives compressed in a box, which means tight landings and the turning stairs of older terraced houses are far easier to manage.
- Easy to dress cheaply: Double sheets and 200 x 200cm duvets are sold everywhere at every price point, handy if you're kitting out a whole home on a stretched budget.
- Generous for one: Sleeping solo, you get the full 4ft 6in x 6ft 3in to yourself, enough to spread out or share a corner with the dog.
This size suits you if...
You're a couple in a typical UK bedroom and want the traditional shared size without the floor space a king demands, you're furnishing a guest room that needs to sleep visiting couples comfortably, or you sleep alone and want room to stretch out beyond a single.
Consider another size if...
You share every night and regularly bump elbows, since 67.5cm each is the tightest standard couples' allowance. We'd recommend the UK king instead: it's 15cm wider and 10cm longer, and we suggest a room of at least 2.7m 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 UK double Mlily Lite Synergy big enough for a couple?
Yes, for most couples. The UK double gives 67.5cm of width each for two people sharing, the long standing British standard. It's the snuggest of the mainstream couples' sizes, so if either of you is broad or restless, the UK king's 75cm each may suit you better.
What are the dimensions of the Mlily Lite Synergy in a UK double?
It measures 135 x 190cm, which is 4ft 6in x 6ft 3in. That's the standard UK double footprint, so it fits any standard UK double bed frame, and double sheets and a 200 x 200cm duvet will fit without adjustment.
Will the UK double fit my bedroom with bedside tables?
We suggest a room of at least 2.6m x 2.8m for a UK double, with around 3m x 3m the comfortable norm. At the minimum you'll still manage slim bedside tables on both sides, though a wardrobe and chest of drawers as well will start to feel tight.
Should I get the Mlily Lite Synergy in a double or a king?
The UK double is 15cm narrower and 10cm shorter than the UK king, and gives 7.5cm less width per person for two sharing. If your room meets our suggested 2.7m x 2.9m for the UK king and you share nightly, size up. In a smaller room, the UK double is the sensible pick.
Can the boxed UK double be carried up narrow stairs?
This is where a boxed mattress helps. The Mlily Lite Synergy arrives compressed and rolled, so it goes round the turning stairs of older terraces and up tight new build landings far more easily than a full-size double. Mlily doesn't publish the box dimensions, so check the retailer listing if access is very tight.