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Comfort trial

Comfort fillings
Firmness rating

Support system
This Jay-Be Bio Cool mattress features breakthrough thermo-responsive technology that conducts excess heat away from your body, for a cooler, undisturbed slumber.

Individualised springs encased in cloth pockets. Expertly adapting to movement to distribute personalised support to each part of your body.

Small, individually cased springs provide added comfort to the mattress whilst offering soothing pressure relief. Mini springs decrease motion transfer so you can share the bed undisturbed.

Soft synthetic fillings create an incredible cosy feel. These fillings are durable and resilient, maintaining its shape and quality. A great balance between comfort and value for money.

Free of allergens for a cleaner, healthier sleep. No allergenic materials were used so you can enjoy an undisturbed rest without the risk of allergy reactions or respiratory problems.

Free from harsh chemicals or irritants or allergens, this product is treated with a natural fire retardant formula. Better for you and the environment.

Stitched into the mattress border, turning handles are there for easier moving and turning. When caring for your mattress, simply use the handles provided for ease of use.

A rolled-up mattress is efficiently packaged for easy manoeuvring. Because of its smaller, compact design, less delivery vans are needed, providing a great environmentally-friendly option.

A sumptuously soft finish that provides additional cosiness and warmth. Knitted covers enhance airflow and are incredibly breathable. So, you can enjoy a cooler snooze.
Not too soft, not too firm - the perfect balance

With a single-sided mattress, there's no need to flip. Simply rotate every few months to care for your mattress. Fuss free mattress maintenance!

Expertly handcrafted in the UK. This product helps to support our economy and helps to reduce environmental impact.

For your peace of mind

For the highest standards of quality and safety
Indulge in cooling comfort with the Jay-Be Bio Cool Hybrid 2000 e-Pocket Mattress. Designed with innovative technology and materials to provide a cool, fresh slumber.
Springy support
The core of this mattress is made up of 2000 e-Pocket™ springs. The special springs provide individualised support. Each spring contours to your body shape, moulding to the areas that need the most support. They help to relieve built-up pressure in your joints so you can enjoy a soothing rest all night long.
These springs are topped with a layer of Micro e-Pocket™ springs. These bouncy springs enhance the comfort, providing you with a sumptuous, plush feeling. This mattress has a medium firmness, ideal for couples who need a compromise.
Added freshness
Filled with eco-friendly fillings, this mattress features mint-infused fibres. Highly breathable, these plant-based natural fibres are antibacterial, helping to resist bacteria growth, reducing odours and maximising long-lasting freshness. Additionally, the mint extract provides a natural cooling feeling.
Award-winning filling
This mattress has been stuffed full with Advance e-Fibre™ filling. Providing luxurious comfort, this material is a great eco-friendly choice. Made from recycled plastic bottles, the production of this material uses 99% less water, land space and 90% reduced CO2 emissions.
Cool cover
These fillings are wrapped up in a high-density thermal conductive fabric that is inherently soft and cooling. Made from Sugarcane yarn which conducts excess heat away from your body, keeping you cooler during the night. The fabric is soft to the touch and has a natural cooling sensation, so you can experience complete comfort all night long.
Strong guarantee
Backed with a 10 Year guarantee, you can buy with the utmost confidence. This mattress has been made by experts right here in the UK, by high-quality craftsmanship you can trust.
This mattress comes with a 100-Night Comfort Trial - like all of our mattresses!
The trial lets you test your mattress for up to 100 nights. If it's not quite right for you, you can exchange it for a new one. To be eligible for the Comfort Trial, you'll need to purchase a mattress protector from MattressOnline with your new mattress.
It can take some time to get used to a new mattress, which is why we ask you to sleep on your mattress for 30 nights. If you're not happy with the feel after 30 nights, simply contact our Customer Service Team, and we'll arrange a mattress exchange.
The following delivery methods apply to mainland England and most of Scotland, Wales and Northern Ireland. Please read our delivery page for more information.
Next day delivery (weekdays only) Order before | FREE |
Weekday of your choice Order up to 60 days ahead | FREE |
Weekend On Saturday or Sunday of your choice | FREE |
Delivery to the front door of your building | Yes |
Two-hour delivery time slot We’ll let you know on the day before your delivery | Yes |
Call to let you know we’re on our way On your delivery day | Yes |
Delivery to your room of choice | £20.00 |
Mattress recycling We'll take away your old mattress | £35.00 |
Delivery is on an all-day service, 7am - 8pm for mainland England and most of Scotland, Wales and Northern Ireland.
Need further information? Please visit our Delivery page.
| Firmness | Medium |
| Comfort fillings | Mini Pocket Springs, Soft White Fibres |
| Support system | Pocket Springs |
| Pocket spring count | 2000 |
| Cover | Knitted cover |
| Allergy care | Hypoallergenic |
| Turning handles | |
| Rolled-up | |
| Single-sided | |
| Guarantee | 10 years |
| Size | Width | Length | Depth |
|---|---|---|---|
| Single | 90cm | 190cm | 23cm |
| Small Double | 120cm | 190cm | 23cm |
| Double | 135cm | 190cm | 23cm |
| King Size | 150cm | 200cm | 23cm |
Please allow for a tolerance of +/- 2cm
| Handcrafted in the UK | |
| Approved by the National Bed Federation |
Fantastic all rounder mattress. Medium firm, comfortable topper and keeps you cool, as it promises!
Verified Purchase
The Jay-Be mattress was advertised as “medium”, which I find extremely misleading. I wouldn’t even describe it as simply soft — it was exceptionally soft, sagging and provided very little support. Honestly, the mattress is so lacking in support that I question how it can reasonably be sold as suitable for sleeping on. The edge support was also so poor that I felt like I was slipping off when rolling towards the side. None of this was made clear enough in the product description. It gave me a bad back and I genuinely thought there was something wrong with the mattress. I contacted customer service wanting to exchange it, but the responses were blunt and unhelpful. After several emails, I was eventually offered a technician inspection. I then had to wait around two weeks for the technician, followed by another 12 days for the result, which I had to chase because nobody contacted me. Nothing was technically wrong with the mattress, but that completely missed the point — my issue was how it was advertised and the lack of support. By then, the process had already taken around a month. I then chose a different mattress to exchange it for, thinking the worst was finally over. It wasn’t. They sent the replacement to my old address without asking me to confirm my current address, despite the technician having already visited me at my new address. The delivery was rescheduled for the next day, so I wasted four hours waiting, received no updates, and eventually had to contact the delivery company myself — only to find out the mattress wasn’t coming. I was then told I would be contacted to arrange another delivery. Instead, I received an email on Monday telling me it would be delivered Tuesday, without anyone asking whether that suited me. People have work and plans — you shouldn’t just decide a delivery date for them after already wasting their time once. Throughout this whole experience, I felt like I was begging for a solution to something that should have been straightforward. I spent a significant amount of money on a mattress I couldn’t sleep on, and that money is now stuck as credit with Mattress Online. When buying a mattress online, you can’t know exactly how it will feel until you receive it. I expected exchanging it if it wasn’t suitable to be straightforward. Unfortunately, my experience has been the complete opposite. Be very careful what you order, because if you get it wrong, don’t expect fixing it — even the second time around — to be easy.
Verified Purchase
Reply from MattressOnline.co.uk, 22 days ago
Hello there Thank you for sharing your feedback. We are genuinely sorry for the frustration and disruption you experienced while arranging your exchange. Firmness ratings can feel different to every sleeper, which is why an independent inspection is required to rule out a manufacturing fault when a mattress feels softer than expected. However, we acknowledge that the delay in providing your results and the communication around your delivery fell short of the service we aim to provide. Regarding the initial delivery attempt, our systems automatically route exchanges to the original order address unless an address update is provided to our team before the replacement is booked. We sincerely apologize for the wasted time and short notice when rescheduling. We are glad to know your exchange has now been completed and that you have your new mattress in place. We truly hope it provides you with a much more comfortable night's sleep, but if you need any further assistance, please feel free to reach out to us directly. Kind regards Charlie
Excellent mattress . Very comfortable
Verified Purchase
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