Free & fast delivery
Any shape or size
Made in the UK
ComfiCel® Gel Foam Mattress – Standard Size
From: £289.99
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Free Mainland UK delivery
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5 year warranty
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Zip off cover included
Which firmness rating should you order?
Regardless of your chosen firmness rating, the top layer of your mattress will remain the same. This means you’ll still enjoy the same level of comfort and pressure relief that you’d expect up top.
When you upgrade to a firmer feel, the bottom layer is swapped for a more supportive, higher density foam. This helps to provide you with a better level of support, as well as preventing you from sinking into the mattress as much.
For those that like their mattress to have a little more ‘give’, the standard firmness rating is usually the preferred choice.
Weight considerations
Under 15 stone?
If you weigh less than 15 stone, you can opt for any firmness rating providing your mattress has a thickness of 13cm or above. If thickness is less than 13cm, we recommending upgrading to our firmer feel for enhanced support.
Over 15 stone?
If you weigh 15 stone and above (but less than 20 stone), be sure to upgrade to our firmer feel for enhanced support.
Weigh more than 20 stone?
If you weigh more than 20 stone please contact us to discuss your requirements.
Can’t find what you’re looking for?
We can make mattresses to any shape or size, so let us know what you’re looking for and we’ll be in touch with a quote!
ComfiCel® Gel Foam Mattress
A great mattress should leave you feeling fantastic each morning, and we think our ComfiCel Gel foam does just that. This revolutionary material is quick to respond when you roll over, perfectly sculpting to your every curve almost immediately.
Faster to respond
Memory foam can be slow to mould to your body. Our ComfiCel foams won’t leave you waiting and begin adapting to your unique shape immediately.
Better freedom to roll
Regular memory foam reacts to changes in temperature which can make it slow to bounce back. ComfiCel foams react to body pressure instead allowing them to start recovering instantly.
Pressure relieving
Old fashion springs push against your body with equal force meaning pressure points are inevitable. Our memory foam is different, distributing body weight more evenly and reducing pressure … ah, now thats better.
Cloud like support
This mattress provides a medium level of support perfect for a wide range of different sleepers. If you’re heavier than 15 stone (or just prefer a firmer mattress) be sure to upgrade to the firmer feel so you stay properly supported.
Less rolling together
Sleep through your partners disturbances and let them roll around guilt free on a mattress that isolates movement.
Two comfortable layers
They say two’s better than one, which is why your new mattress has been made with 2 layers – a cushiony layer on top and a firmer more supportive layer at the bottom.
Durability built in
Our mattresses are designed to give you 5 years of amazing everyday sleep – we’ve even backed it up with a 5 year warranty for peace of mind.
Zip off cover
Mistakes happen and should you spill your favourite cup of tea all over your new mattress, just unzip the cover and clean it with ease – simple!
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Suitable for daily use
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Removable cover
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Reduces pressure points
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Supportive base layer
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ComfiCel technology
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Sleeps cooler
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The science of a good nights sleep
A good nights sleep is important and can be linked to a longer, healthier life. The ComfiCel range combines cutting edge technology, with innovation and creativity so you stay wonderfully comfortable all night long. Compared to more traditional mattress materials, you can expect improved durability, better freedom to roll and most importantly – a better nights sleep!
You’ll love what we can do in the bedroom
Any shape or size
No matter what shape or size you need, we’ve got a solution. Let us worry about the hard work, whilst you put your feet up and relax.
Easy to install
Gone are the days of wrestling with your new mattress trying to persuade it onto the bed. The future is here, and its vacuum packed!
British made
Designed and manufactured in the UK by our sleep experts, feel proud you’re supporting the British economy as you snuggle down onto the best mattress you’ve ever owned.
1,000’s of happy customers
We’re experts when it comes to customer satisfaction, so we already know you’ll love sleeping with us and we can’t wait to show you what we’re all about.
Free & fast delivery
We’ll deliver your mattress in as little as 4 working days. What’s better, delivery is free of charge if you provide us with a mainland UK address. View current lead times
Excellent customer service
You can expect a fast response from our enthusiastic team of experts when you get in touch! What’s better, call us and you’ll speak to a real person.
27 reviews for ComfiCel® Gel Foam Mattress – Standard Size
Add a review
Delivery times:
All products are made to order and as a result delivery dates can vary. View current lead times
Delivery information:
Our couriers typically deliver Monday - Friday between 8AM - 6PM. Read more about delivery
Free Mainland UK delivery:
We offer free mainland UK delivery on most orders, although some geographical restrictions apply. Read more about delivery charges
Suitability:
When ordering it's important you consider suitability. Read more about suitability
Caring for your new mattress:
To help get the best out of your new mattress we have put together a care guide which must be followed. View our care guide
Warranty:
In the unlikely event your new mattress develops a fault, we've got your back! This mattress is covered by a 5 year limited warranty. View full information
Returns:
Please click here to view our returns policy
Full Terms & Conditions:
Click here to read our full terms and conditions which apply to all orders.
As we continually develop and update our product range, there may be instances where products of the same name or same specification differ in appearance and / or feel as our access to raw materials change. If you've ordered with us previously and are expecting a like for like product please contact us before ordering to discuss how we can accommodate your requirements - please note this may result in extended lead times. Custom Size Beds reserves the right to change any material used in the manufacturing process at any time. While we endeavour to ensure all information is accurate and all pictures are an accurate representation of our actual products, variations in size, design or colour may occur.
Pillows / bedding and bed frames shown are sold separately.
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Carole Millard –
Excellent customer service. Had the mattress a couple of weeks now and really pleased. Very comfortable, well made and feels excellent quality
Gregory Farrar –
Well done custom size beds. Prompt delivery of a very comfortable mattress. Thank you.
Clare Leask –
I just wanted to thank custom sized beds for a seamless and efficient order and delivery. Ordered Tuesday evening, they range me Wednesday morning re my request for a Saturday delivery. ( extra cost which I was happy with)
Bed arrived at 8am Saturday morning with a very polite and helpful delivery driver. Mattress is very comfortable and whist it is early days with my new mattress I wanted to thank custom size beds for a great service and from first impressions a well made and quality mattress.
Darren –
Have had severe back issues and was looking for a new mattress . Came across the ComfiCel Gel Foam and I am so thankful.
In addition, the sales team are excellent, they understood my requirements and advised on right mattress and size.
So all in all an excellent mattress if you suffer back problems and an excellent company to deal with.
Jenny –
I am so very pleased with this matress its perfect for my back. The turnaround was pretty quick considering I had to upgrade to a firmer base. Myles was very helpful and provided me with extra information on the product. I ordered it on the monday and it arrived on the Friday. Thank you very much Myles
Linzi –
I bought one of these last year, for my son who suffers from back problems. He cannot rate it highly enough! So when I needed a new mattress for my other son, I came straight here. Customer service from Myles is incredibly friendly and personal. I would give 10 stars if I could!
Sue Ashton –
We purchased a convoluted top ComfiCel Gel mattress for our motorhome some months ago and we love it. Myles was very patient when we tried to get the correct measurement for our odd shaped bed! Excellent friendly, efficient service. The mattress is incredibly comfortable. We will be considering buying another one when the time comes to replace the mattress at home. Thanks a lot, excellent five star customer service.
Erfan Afzal –
Having bought two single convoluted top Gel foam mattresses last year, I have now ordered a double mattress. I have used memory foam mattresses before, but this one is such a high quality that I don’t need to look anywhere else anymore.
They have an excellent, fast and friendly customer service. It just feels like that you are communicating with one of your family members.
I would like to commend Myles Hardy for his fantastic five star customer service and recommend Custom Size Beds to anyone looking to buy their next mattress.
Grace Morris –
I already had a wonderful ComfiCel Gel mattress but wanted a matching topper to go on top. Myles was really helpful, giving me the information I needed to make an informed choice. I decided on a 3″ Gel topper and Myles promptly gave me a price. The topper arrived the day after I placed the order at 8:30 in the morning!
I cannot fault the excellent customer service from this company an d have no hesitation in recommending them.
Derek Young –
After we bought 2 ComfiCel Gel Foam mattresses for our newly acquired static caravan, we soon realised after sleeping on the double mattress that came with the caravan that it was our immediate needs that should have been addressed, and not that of our guests. We placed the mattresses on the double base and have had excellent comfort from them, unfortunately we do tend to slip down the middle, so we again phoned Myles at Custom Size beds to see if it was possible to make a double size cover to fit both the mattresses into, this they have done. we take the new cover to he caravan tomorrow and I have absolutely no doubt that we should not have any further bother. the mattresses and the service that Custom Size Beds supply are second to none and I have no problem recommending them to anyone.
Derek Young.
L Galley –
ComfiCel Gel Foam Mattress – great mattress and comes with a good quality thick zip cover. This mattress is very comfortable and I would recommend it. It is solid yet comfortable and supportive. When my partner gets out of bed I am totally unaware as it supports me separately to him. The cooling top works not allowing us to get too hot. The customer service we receive from this company is second to none. We had a small problem and it was sorted out immediately the next day! Great value for a foam mattress, I would buy another tomorrow from this company.
Nick –
Simply put, this mattress does what it says on the tin, it’s supremely comfortable. The support is excellent and there are no annoying springs creaking away as you move around. Dealing with the company for the order and delivery process was also a breath of fresh air. I had a few questions and these were answered quickly and positively by Myles who reassured me that what I needed would be what happened. It was good ‘old fashioned’ customer service. I have no hesitation in recommending either the mattress, or this company to anyone looking to buy a great mattress at a great price from a company that cares about its customers.
Rebecca –
Finally got round to replacing our old M&S mattress with this ComfiCel Gel foam one. What a difference – I suffer with my back and have never slept so well! My husband and I have noticed that we don’t roll into each other and whilst the bed gives firm support it is not hard and feels like you are sleeping on air. These are very good quality and excellent value for money. We received fantastic service from Myles and our mattress was received within a couple of days. Will be recommending to my friends and family.
Callum –
Fantastic mattress & even better service! Thankyou Myles!
Claire Lomas –
Just recently bought this mattress and all i can say is amazing i suffer with a bad back and hip and on our old pocket sprung mattress i used to be that uncomfortable i had to get up but with this mattress i haven’t had a problem at all and would definitely recommend it and also great for side sleepers as your shoulder just molds into the mattress so no more neck problems. Excellent service from Myles at Sleep Sensation would definitely use them again in the future.
C Oakley –
Excellent mattress which was cut to our exact dimensions and arrived with a good quality zip off cover. Such a difference from the original mattress that came with our motorhome; my hips are now supported by the mattress, not by the base of the bed! Also received brilliant customer service from the company.
P & D Hicklin –
We are delighted with our Gel foam mattress. We were looking for something to help me get a better nights sleep, as I suffer from fibromyalgia, but it also needed to fit our european size Ikea bed frame. Would have no hesitation in buying another, or recommending to friends.
G Marsh –
After a few nights sleep on this mattress me and the other half noticed a big difference. We slept well and have been now since we got it. Best value for money and would recommend this to family and friends. Customer service is amazing, any questions are answered and always happy to help. Delivery is very fast as well. Want to say thanks to the guys for an amazing product.
G Marsh –
I am very happy with this mattress. I noticed the difference straight away after sleeping on it. Would definitely recommend it to friends and family. Customer service is amazing as well. All questions are answered straight away and very friendly people. Great value well worth the money and delivery was very fast as well.
J Dann –
Lovely mattress, really pleased with my purchase. Perhaps I shouldn’t have bought such a comfy mattress for my teenage son, it’s even harder to get him out! Even the dog thinks it’s great! Seriously, the delivery was good, and the mattress is wonderfully made and we have no complaints whatsoever. I wish I had one on my bed….
Georgia –
Great mattress, was a little worried it was the wrong size when it came but grew to the right size after a few hours. Excellent communication from the seller as I had a lot of questions and had an issue with the delivery. I’m giving it a 4 out of 5 simply because I think they need to change their delivery service from TNT who didn’t deliver on the day they were supposed to. But other than that I have no fault with the mattress or Customesizebeds.
A Bowe –
ComfiCel Gel foam mattress is so comfortable. Really gives the support I need. I’m now having the best nights sleep in years. Excellent customer service and super fast next day delivery. No hesitation in recommending.
Patricia Rooney –
Very efficient and professional company. Mattress is so comfortable and firm its is increasingly difficult to get out of bed in the morning. Very impressed with the customer service,delivery and quality. Have no hesitation recommending the gel foam.
john green –
I’m impressed with both the quality and the cimfort this mattress offers. It replaces a memory foam mattress I had for some years, and I have to say that it is superior in giving a firm but forgiving nights sleep. I wouldn’t hesitate in choosing this type of mattress again at the very keen prices they can be purchased for
Charlie –
This is the second ComfiCel gel foam mattress I have purchased, they are very comfortable and amazing value for the money. I would not buy any other kind of mattress now, even my girlfriend was well impressed and believe me she can be very picky. Customer service is impressive and I would not hesitate to recommend this product to anyone.
pearl and aaron –
amazing how much the difference of this mattress to my previous one is it is is well worth the money and is brilliant my husband came out of surgery on his back and was in a lot of pain for several weeks but as soon as he got this delivered to our home he is different he gets up now and can walk around and help out with the kids its remarkable so if there is any doubt of this mattress in your mind wipe it away as this is an amazing product thanks to Myles and every one for constant emails as i was skeptical but now im a believer thanks sensation sleep buy this mattress
K Talis –
Gel foam mattress, my wife has immediately felt the difference in her hip upon the purchase of this mattress, very happy customers and best price around delivered next day what more is there to a decision excellent service all round.
K. Tallis