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Arthur Sleep Cool Gel 800 Hybrid Mattress - image 1
96% of customers keep their mattress
Arthur Sleep Cool Gel 800 Hybrid Mattress - image 2 Arthur Sleep Cool Gel 800 Hybrid Mattress - image 3 Arthur Sleep Cool Gel 800 Hybrid Mattress - image 4 Arthur Sleep Cool Gel 800 Hybrid Mattress - image 5 Arthur Sleep Cool Gel 800 Hybrid Mattress - image 6 Arthur Sleep Cool Gel 800 Hybrid Mattress - image 7 Arthur Sleep Cool Gel 800 Hybrid Mattress - image 8 Arthur Sleep Cool Gel 800 Hybrid Mattress - image 9 Arthur Sleep Cool Gel 800 Hybrid Mattress - image 10 Arthur Sleep Cool Gel 800 Hybrid Mattress - image 11 Arthur Sleep Cool Gel 800 Hybrid Mattress - image 12

Arthur Sleep Cool Gel 800 Hybrid Mattress

4.8/5
Body-contouring gel foam helps regulate temperature over a pocket sprung core, with a quilted fabric cover to finish.
iconMedium
iconGel Foam
icon800 Pocket Springs
icon27cm depth
  • Pocket Sprung Support
  • Body contouring gel foam
  • Body temperature regulation
  • Quilted fabric cover
Price Promise

Seen it cheaper somewhere else? We'll match it — that's our Price Promise.

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£269
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Available in 9 Showrooms
1 Year Guarantee
Flexible Credit Options
The Verdict

What 53 sleepers really think

Rated 4.8/5 from 53 verified reviews
Customers praised the Arthur Sleep Cool Gel mattress for its comfort, support, and cooling properties. Many noted significant improvements in sleep quality, reduced back pain, and better temperature regulation, especially in hot conditions. Users also found it to offer great value for money. The firmness initially surprised some but was widely appreciated for providing adequate support, though one review mentioned discomfort with its firmness at first.

AI-generated from the text of customer reviews

Why This Mattress

Why buy the Arthur Sleep Cool Gel 800 Hybrid Mattress?

Every mattress is different. Scan for the ones that sound like you — if two or more fit, this is your mattress.

Best For
Side Sleepers
Curl up on your side?
Enough give at the shoulders and hips to keep side sleepers comfortable and aligned.
Helps with
Disturbance
Partner tosses and turns?
Springs that move independently absorb motion, so a restless partner is far less likely to wake you.
Helps with
Allergies
Wake up itchy or sneezy?
Hypoallergenic fillings and covers help keep dust mites and allergens at bay - ideal for allergy-prone sleepers.
Helps with
Pressure Relief
Achy hips or shoulders?
Cushioning comfort layers spread your weight evenly, easing pressure around hips and shoulders.
Thermal Control
Cooling
Sleep hot?
Breathable layers draw heat away from you overnight, for a cooler sleep if you tend to run warm.
Helps with
Anti Bacterial
Freshness a priority?
A treated finish that stops bacteria building up, keeping things fresher and more hygienic for longer.
Helps with
Anti Microbial
Musty smells worry you?
Resists the microbes that cause mould and odours, helping the sleep surface stay clean and fresh.
How It Feels

How firm is it?

Medium

Medium is the level of support to the body, suitable for all average weighted people. This is not a comfort rating.

About the Brand
★ 4.83 brand rating

Arthur Sleep is an exclusive brand offering convenient, low-maintenance mattress solutions for all sleepers. With innovative pocket sprung and memory foam hybrids, they prioritize comfort and support. Featuring 100% hypoallergenic materials and a Which? Best Buy endorsement, Arthur Sleep ensures quality and restful nights for years.

View all Arthur Sleep
Real Sleepers

What our customers say

4.8
Product Rated 4.8 Stars
53 reviews
Average Customer Ratings
Comfort4.8
Durability4.8
Quality4.8
Value for money4.8
Rating Snapshot
5 stars
45
4 stars
7
3 stars
1
2 stars
0
1 stars
0
Excellent45
Great7
Average1
Philip Litchfield
Customer Rated This 5 Stars 5/5
26 Mar 2026
Firmness of this mattress was just what I was hoping it would be. Very supportive and the top layer adds the comfort. No more waking up in the morning with aches and pains - very pleased with this mattress. Now that I have been using it for a while it has settled down and has become even more comfortable than it was initially. Also great service from Mattressman and their delivery team.
Quality5
Comfort5
Value5
Verified By trustpilot verification
Josh Jones
Customer Rated This 5 Stars 5/5
15 Sep 2025
Brilliant a week in on this mattress and I feel more alive have lots of energy just from getting a better night sleep .... such comfort and support throughout the night ive never reviewed items I buy butt this is worth the review best thing ive bought in a long time glad to have purchased this mattress
Value5
Comfort5
Quality5
Durability5
Verified By trustpilot verification
Nadia Graham
Customer Rated This 5 Stars 5/5
20 Aug 2026
Mattress is fine once I got it. Quite tricky to unwrap. Delivery service by DX appalling as always. No delivery slot, no communication, don't follow instructions and don't even knock. It was quite a heavy package for 2 old people to drag indoors and although old, we are not deaf. They didn't knock
Quality4
Value5
Comfort5
Verified By trustpilot verification
Lucy Crumlish
Customer Rated This 5 Stars 5/5
09 Sep 2026
I did do some research regarding what one to get, im 10 stone 11lbs and this was suggested - med/firm and its great for me, have had a great sleep every night so far. I have followed the instructions re turning around but that takes a couple of min when changing the bed ??
Quality5
Comfort5
Value5
Verified By trustpilot verification
Debbie Herron
Customer Rated This 5 Stars 5/5
02 May 2026
Plenty of support but not too firm. I’ve been sleeping on a waterbed for years so thought it would take some time to get used to this mattress but no issues at all. You can feel the cooling even and it is helping me sleep a little better.
Quality4
Value5
Comfort5
Verified By trustpilot verification
Katrina Bate
Customer Rated This 5 Stars 5/5
12 Dec 2025
Only had the mattresses a few days but are very comfortable and very happy with the quality. Only downside is on these dark mornings do not want to get out of the bed!
Value5
Comfort5
Quality5
Verified By trustpilot verification
Viewing 1 to 6 of 53
Our Promise

The Cool Gel 800 Hybrid Mattress has

A 60-night sleep trial Sleep on it at home — love it, or exchange it between nights 30 and 60.
A 96% keep rate Not a survey — our own order data, updated weekly.
A 1 year guarantee See exactly what's covered, and for how long.
Price Match Promise Seen it cheaper somewhere else? We'll match it.
·
Good To Know

Frequently asked questions

Can allergy sufferers use this mattress comfortably?
Absolutely, this mattress is a good choice for those with allergies. Its materials and fabric have been designed to minimise allergens effectively.
How does the pocket sprung support work?
The pocket sprung support consists of individually encapsulated springs that move independently, providing body contouring and preventing the 'roll together' effect, ensuring a quiet night's sleep.
What type of foam is used in this mattress?
The mattress uses comfort foam, which is a cost-effective alternative to memory or reflex foam, offering similar support without the higher price.
Can I turn this mattress over?
No, this mattress is one-sided and does not need to be turned, but it is recommended to rotate it regularly for even wear.
What is the cover made from?
The mattress features a knitted cover that stretches with the mattress, providing great elasticity and breathability.
How long does it take for the mattress to fully expand after unrolling it?
After unrolling the mattress, it's best to leave it for 4 to 24 hours to fully expand and reach its proper shape.
Does this mattress help with body temperature regulation?
Yes, the body contouring gel foam is designed to help regulate body temperature, providing a comfortable sleeping environment.
Are there handles on this mattress for easy movement?
Yes, the mattress has handles attached to the border, making it easier to rotate and manage.
Is this mattress suitable for a child’s bedroom?
Yes, the mattress is rated Source 2 for domestic flammability, making it suitable for general domestic use, including children's bedrooms.
What kind of finish does the mattress have?
The mattress features a micro quilted finish, which creates a patterned comfort quilt layer by stitching together the fabric and fillings.
Better Together

Also paired with

Still Deciding?

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More To Explore

Where to next?

Arthur Sleep Mattresses
Arthur Sleep Medium Mattresses
Arthur Sleep Pocket Sprung Mattresses
Arthur Sleep Cool Sleep Range

60-night sleep trial: exchanges only, not refunds. Activated by purchasing a mattress protector at the point of order. Request your exchange between nights 30 and 60 of the trial; a £50 exchange fee applies. Full terms.

Keep rate: the share of this product's delivered orders in the last 6 months that were kept rather than returned. Updated weekly, rounded down, capped at 99%, and only shown where we have at least 30 delivered orders.

Recommendation rate: the percentage of verified Trustpilot reviews for this product with a rating of 4 stars or more, rounded down.

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