Jay-Be Benchmark S3 Memory Eco-friendly Mattress
Mattress
Jay-Be Benchmark S3 Memory Eco-friendly Mattress
Size
Firmness
Firm
Construction
Depth (cm)
19
Layers
5
Layer Details
- Cover. A knitted fabric cover, which means a soft-touch surface against your skin from the moment you lie down.
- Advanced e-Fibre®. An award-winning comfort layer designed for luxury comfort and breathability, so air moves through rather than building up heat.
- Memory e-Fibre®. A memory layer offering quick-response pressure relief. Unlike traditional memory foam, it recovers quickly, so you won't feel stuck when you change position.
- Rebound e-Fibre®. A rebound layer that contours to your shape, which means support that follows your body rather than a flat, rigid feel.
- e-Spring™ core. A deep sprung core with supportive comfort layers, giving the mattress its firm, stable foundation.
Layer details from furniturevillage.co.uk product page, September 2026.
- The classic shared size: At 135 x 190cm it's the long-established two-person standard, which means it fits the rooms and the bed frames most UK homes already have.
- Firm support for two: The e-Spring™ core keeps the surface stable across the full width, so neither of you rolls towards the middle when the other turns over.
- Cooler sharing: Two bodies raise the temperature under any duvet, and the breathable e-Fibre® layers let air move through rather than trapping heat between you.
- Room for tables both sides: In a bedroom of around 2.6m x 2.8m or more, a UK double usually leaves space for bedside tables on each side, which the UK king often doesn't.
- Easy to dress cheaply: Double sheets and 200 x 200cm double duvets are stocked everywhere at every price, handy if you're kitting out a bedroom from scratch.
- Lighter to manoeuvre: The slim 19cm profile makes this size easier to steer around the turn in a terraced staircase or a tight new build landing than a deeper king.
This size suits you if...
You share the bed every night and want the traditional couples' size that leaves your bedroom feeling like a room rather than a mattress showroom, you're furnishing a first flat or a whole home and want a sensible footprint with the widest choice of frames and bedding, or you sleep alone but like space to spread out, dog or cat included.
Consider another size if...
You and your partner both like plenty of personal space, or one of you is a restless sleeper. With 67.5cm each for two people sharing, some couples feel a little close; we'd recommend the UK king instead if your room allows at least 2.7m x 2.9m.
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.
Is a UK double Benchmark S3 big enough for a couple?
Yes for most couples. The UK double gives 67.5cm each for two people sharing, and the firm e-Spring™ core keeps the surface stable so you're less aware of a partner moving. If either of you is broad-shouldered or sprawls in your sleep, the UK king adds 15cm of width and 10cm of length.
What room size do I need for the Benchmark S3 in a UK double?
We suggest at least 2.6m x 2.8m, with around 3m x 3m the comfortable norm. That usually leaves space for bedside tables on both sides plus a wardrobe, which is why the UK double remains the default for typical British bedrooms where a UK king would dominate.
Should I choose the Benchmark S3 in a double or a king?
It comes down to room and sharing style. The UK double is 15cm narrower and 10cm shorter than the UK king, so it suits rooms where furniture has to fit around the bed. If you have at least 2.7m x 2.9m and either of you is tall or a light sleeper, sizing up to the UK king is money well spent.
Will the double Benchmark S3 fit up a narrow staircase?
It's better placed than most. At 135cm wide and 19cm deep, this mattress is slimmer than many doubles, which helps on turning stairs in older terraces and tight new build landings. Measure your narrowest pinch point against the 135 x 190cm dimensions before ordering, especially around banisters and low ceilings.
Is a UK double Benchmark S3 a good guest room mattress?
It's a sensible choice. A UK double accommodates visiting couples, and the firm feel divides opinion less among occasional guests than a very soft mattress would. The size fits most second bedrooms alongside a wardrobe and drawers, and double bedding is cheap and easy to find. Compare the retailers listed on this page for current prices.