Jay-Be Bio Cool Hybrid 2000 e-Pocket King Size Mattress
The Jay-Be Bio Cool Hybrid 2000 e-Pocket is a medium-feel hybrid, 23cm deep, built around 2000 e-Pocket springs topped with a layer of smaller mini pocket springs and several fibre comfort layers.
- Cooling cover draws heat away
- Minimises partner disturbance
- Fillings made from recycled bottles
£474
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.
Jay-Be Bio Cool Hybrid 2000 e-Pocket Mattress
More available sizes
Mattress details
Mattress
Jay-Be Bio Cool Hybrid 2000 e-Pocket Mattress
Size
Firmness
Soft
Construction
Pocket Spring
Hybrid
Eco-Friendly
Depth (cm)
23
Layers
6
Layer Details
Cover
A high-density thermal conductive fabric made from sugarcane yarn, which means excess heat is drawn away from your body as you sleep. The result is a cooler night, particularly useful in warmer months.
Comfort layer
Soft white fibre fillings that create a cosy initial feel. They're durable and resilient, so they should hold their shape rather than flattening quickly.
Comfort layer
Mint-infused, plant-based natural fibres that are highly breathable and antibacterial. They resist bacteria growth and add a natural cooling feeling to the sleep surface.
Comfort layer
Advance e-Fibre filling made from recycled plastic bottles. You get a luxurious layer of comfort with a lower environmental footprint.
Mini Pocket Springs
Small, individually cased springs sitting above the main support unit. They add comfort and soothing pressure relief while cutting down motion transfer between partners.
Support system
2000 e-Pocket springs providing individualised support. Each spring contours to your body shape, moulding to the areas that need it most.
Layer details from mattressonline.co.uk product page, September 2026.
Key benefits
- 75cm each for two sharing: You each get 75cm of the 150cm width, so a partner who shifts position or props pillows at 3am no longer takes your half with them.
- Less disturbance across a wider bed: The mini pocket springs already cut motion transfer, and the king's extra width means movement has further to travel before it reaches you at all.
- 200cm of length for taller sleepers: At 200cm, the UK king is 10cm longer than the UK double, which anyone approaching six foot will feel every night, particularly heel and shoulder room.
- Cooling that suits a shared bed: Two bodies generate more heat than one, so the sugarcane cover and mint-infused breathable fibres do more useful work in a king than a solo size.
- 2000 springs across the full width: The e-Pocket springs are individually cased, so each side of the bed contours to the person on it rather than settling to a shared average.
This size suits you if...
You share the bed every night and have outgrown a double, especially if one of you gets up hours before the other and you'd rather not feel it. Or one of you is over six foot and needs the 200cm length as much as the width. It also fits if the dog has become a permanent fixture and a double no longer leaves room for the humans.
Consider another size if...
Your bedroom can't comfortably take a king, for which we suggest allowing at least 2.7m x 2.9m. In that case we'd recommend the UK double instead, which is 15cm narrower and 10cm shorter, and we suggest at least 2.6m x 2.8m of room 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 Jay-Be Bio Cool Hybrid UK king big enough for a couple?
Yes, comfortably for most couples. At 150cm wide you get 75cm each for two people sharing, and the mini pocket spring layer reduces the movement you feel from a partner. If one of you sleeps restlessly or works odd hours, that combination of width and motion isolation is exactly what the UK king is for.
What room size do I need for the Bio Cool Hybrid in a UK king?
We suggest allowing at least 2.7m x 2.9m so you can walk round both sides and open drawers without shuffling sideways. New build master bedrooms can be tighter than they look once wardrobes go in, so measure the usable floor space rather than the room itself before committing.
How much bigger is the UK king than the UK double for this mattress?
The UK king is 15cm wider and 10cm longer than the UK double. Split between two people, that extra width is a noticeable difference in personal space every night, and the added length helps taller sleepers whose feet reach the end of a standard 190cm mattress.
Will the UK king suit a sleeper over six foot?
It's a sensible choice. The UK king is 200cm long, 10cm more than the UK double, which is often the difference between feet hanging over the edge and lying flat comfortably. If length is your main concern, the king delivers it without demanding the floor space of the UK super king.
What are the dimensions of the Bio Cool Hybrid UK king?
It measures 150 x 200cm, which is 5ft x 6ft 6in. You'll need standard UK king sheets and a 230 x 220cm king duvet. Prices for this size change regularly, so compare the retailers listed on this page for the current figures.