Cool Ultima Devonshire Medium Mattress
The 33cm deep Cool Ultima Devonshire medium comfort is a truly remarkable luxurious handcrafted mattress.
Our most luxurious medium comfort hybrid mattress is the perfect combination of comfort and support.
Advanced Pressure Relief and Contouring
Two layers of 25cm viscose elastic aerated memory foam contour perfectly to your body for unbeatable comfort.
The result is a mattress that provides total pressure relief and correct spinal alignment by conforming to your exact individual body shape.
Increased Temperature Regulation and Cooling
Increased layers of breathable natural and synthetic materials ensure you stay cool and comfortable all night long.
Temperature controlled memory foam and adaptive cooling foam work together to regulate your body temperature, making this our most temp regulated and body contouring medium comfort mattress.
Airflow and Breathability
The mattress is also cooler than a traditional memory foam and pocket sprung mattresses, thanks to the addition of 8 chrome vents, added air flow through the pocket sprung system and addition of adaptive cooling foam.
Highly Responsive Ergonomic Support
Our 7 zone 2000 pocket spring system is made up of a series of 18cm full height springs, that are each individually wrapped in their own open cell fabric pocket.
This allows the springs to move independently from each other, providing support and pressure relief where you need it most.
The full height springs provide maximum support and significantly increased pressure relief compared to lower height springs used by many other manufacturers.
The individually encapsulated pocket springs ensure motion transfer is not a problem, ensuring no roll together or disturbances from partner movements.
For further information on full height pocket springs, please see our pocket springs guide.
Superior Hybrid Mattress Construction
We use a combination of traditional and modern techniques to make sure your mattress will last for years to come.
The support layers are held together with wool felt tufts, while the comfort layers are quilted including the two 25cm layers of memory foam.
The memory foam layers are stitched in as a pillow top providing increased comfort and body contouring.
For further information on MASA Sleep hybrid mattress construction, please see our mattress technology guide.
Edge to Edge Support
Our construction techniques also ensure that you have a flat sleep surface, no matter how close you get to the edge of the bed.
With additional butterfly edge support and steel wire reinforcement, you'll never have to worry about your mattress sagging or dipping even at the edges. Total of 10 butterfly edge supports are provided.
Ultima Pillow Top Mattress
This handcrafted mattress direct from the manufacturer is a great option. It features all the bells and whistles that you would expect from a luxury mattress, including a pillow top design, 7 zoned pocket spring system and premium materials.
However, as a manufacturer retailing directly to you, it's much more affordable than similar mattresses on the market. This makes it a great option for anyone who wants to enjoy the benefits of a luxury mattress without breaking the bank.
Medium Comfort
Perfect for people who sleep on their side, but also great if you are a lighter weight back or stomach sleeper. Please see our comfort guide for further information.
Comfort Rating - 6/10
Mattress Depth - 33cm
Surface Finish - Quilted with pillow top
Number of Layers - 12 Layers
Construction - Premium advanced hybrid with pillow top. Comfort layers quilted & support layers tufted with a pillow top for extra comfort.
Fillings- Visco - elastic memory foam, hypoallergenic synthetic & natural fibres.
Cooling Tech - 8 vents, open cell cooling foam & breathable materials
Edge Support - Wire edge and 10 steel butterflies
Pocket Spring Count - 2000 full height 18cm pocket springs
Mattress Weight -
Single - 35kg
Small Double - 46kg
Double - 53kg
King - 62kg
Available in UK sizes
Single - 90cm wide x 190cm long,
Small double - 120cm wide x 190cm long
Double - 135cm wide x 190cm long
King size - 150cm wide x 200cm long
Perfect for people who sleep on their side, but also great if you are a lighter weight back or stomach sleeper.
Deliveries are free and carried out by two-man courier to the room of your choice up to the first floor.
There is a maximum 2 week lead time on the Cool Ultima mattress from when you place your order until delivery. Full tracking information will be provided by our customer service team.
Our delivery service operates from Monday – Sunday excluding bank holidays, between the hours of 7.00am - 8.00pm. If the mattress needs to go up additional floors than the first floor then please do get in touch as the courier charges a small fee for this.
Please also provide a contact number so we can make sure there are no delays with your delivery.
We do not charge for Great Britain mainland deliveries. However, we charge an additional amount to deliver to certain postcodes where it’s difficult for the courier services to reach you. Learn more
For our Cool Ultima hybrid mattresses we offer a 60 night sleep trial.
It is important to us that you love your new mattress. So if after a while you discover that it is too firm, too soft or too something else just return the mattress for a refund or simply change it for another. All we ask is that you use a mattress protector from day one to qualify for the Sleep Trial. Learn more
We are confident that you will fall in love with your MASA Sleep bed, mattress or furniture item at first sight. Although, to protect you as a customer and give you a little more peace of mind with your purchase, we offer a 5 year manufacturer's guarantee on our Cool Ultima hybrid mattresses. Learn more
The 33cm deep Cool Ultima Devonshire medium comfort is a truly remarkable luxurious handcrafted mattress.
Our most luxurious medium comfort hybrid mattress is the perfect combination of comfort and support.
Advanced Pressure Relief and Contouring
Two layers of 25cm viscose elastic aerated memory foam contour perfectly to your body for unbeatable comfort.
The result is a mattress that provides total pressure relief and correct spinal alignment by conforming to your exact individual body shape.
Increased Temperature Regulation and Cooling
Increased layers of breathable natural and synthetic materials ensure you stay cool and comfortable all night long.
Temperature controlled memory foam and adaptive cooling foam work together to regulate your body temperature, making this our most temp regulated and body contouring medium comfort mattress.
Airflow and Breathability
The mattress is also cooler than a traditional memory foam and pocket sprung mattresses, thanks to the addition of 8 chrome vents, added air flow through the pocket sprung system and addition of adaptive cooling foam.
Highly Responsive Ergonomic Support
Our 7 zone 2000 pocket spring system is made up of a series of 18cm full height springs, that are each individually wrapped in their own open cell fabric pocket.
This allows the springs to move independently from each other, providing support and pressure relief where you need it most.
The full height springs provide maximum support and significantly increased pressure relief compared to lower height springs used by many other manufacturers.
The individually encapsulated pocket springs ensure motion transfer is not a problem, ensuring no roll together or disturbances from partner movements.
For further information on full height pocket springs, please see our pocket springs guide.
Superior Hybrid Mattress Construction
We use a combination of traditional and modern techniques to make sure your mattress will last for years to come.
The support layers are held together with wool felt tufts, while the comfort layers are quilted including the two 25cm layers of memory foam.
The memory foam layers are stitched in as a pillow top providing increased comfort and body contouring.
For further information on MASA Sleep hybrid mattress construction, please see our mattress technology guide.
Edge to Edge Support
Our construction techniques also ensure that you have a flat sleep surface, no matter how close you get to the edge of the bed.
With additional butterfly edge support and steel wire reinforcement, you'll never have to worry about your mattress sagging or dipping even at the edges. Total of 10 butterfly edge supports are provided.
Ultima Pillow Top Mattress
This handcrafted mattress direct from the manufacturer is a great option. It features all the bells and whistles that you would expect from a luxury mattress, including a pillow top design, 7 zoned pocket spring system and premium materials.
However, as a manufacturer retailing directly to you, it's much more affordable than similar mattresses on the market. This makes it a great option for anyone who wants to enjoy the benefits of a luxury mattress without breaking the bank.
Medium Comfort
Perfect for people who sleep on their side, but also great if you are a lighter weight back or stomach sleeper. Please see our comfort guide for further information.
Comfort Rating - 6/10
Mattress Depth - 33cm
Surface Finish - Quilted with pillow top
Number of Layers - 12 Layers
Construction - Premium advanced hybrid with pillow top. Comfort layers quilted & support layers tufted with a pillow top for extra comfort.
Fillings- Visco - elastic memory foam, hypoallergenic synthetic & natural fibres.
Cooling Tech - 8 vents, open cell cooling foam & breathable materials
Edge Support - Wire edge and 10 steel butterflies
Pocket Spring Count - 2000 full height 18cm pocket springs
Mattress Weight -
Single - 35kg
Small Double - 46kg
Double - 53kg
King - 62kg
Available in UK sizes
Single - 90cm wide x 190cm long,
Small double - 120cm wide x 190cm long
Double - 135cm wide x 190cm long
King size - 150cm wide x 200cm long
Perfect for people who sleep on their side, but also great if you are a lighter weight back or stomach sleeper.
Deliveries are free and carried out by two-man courier to the room of your choice up to the first floor.
There is a maximum 2 week lead time on the Cool Ultima mattress from when you place your order until delivery. Full tracking information will be provided by our customer service team.
Our delivery service operates from Monday – Sunday excluding bank holidays, between the hours of 7.00am - 8.00pm. If the mattress needs to go up additional floors than the first floor then please do get in touch as the courier charges a small fee for this.
Please also provide a contact number so we can make sure there are no delays with your delivery.
We do not charge for Great Britain mainland deliveries. However, we charge an additional amount to deliver to certain postcodes where it’s difficult for the courier services to reach you. Learn more
For our Cool Ultima hybrid mattresses we offer a 60 night sleep trial.
It is important to us that you love your new mattress. So if after a while you discover that it is too firm, too soft or too something else just return the mattress for a refund or simply change it for another. All we ask is that you use a mattress protector from day one to qualify for the Sleep Trial. Learn more
We are confident that you will fall in love with your MASA Sleep bed, mattress or furniture item at first sight. Although, to protect you as a customer and give you a little more peace of mind with your purchase, we offer a 5 year manufacturer's guarantee on our Cool Ultima hybrid mattresses. Learn more
What Goes Inside The Comfort Elite Mattress
Layer 1 - Tencel infused quilted cooling cover
Hypoallergenic moisture wicking breathable cover, infused with natural Tencel fibres.
Layer 12 - Support foundation
High-density breathable support base offers the best foundation, giving the mattress its durable structure.
Layer 2 - (pillow top) Open cell adaptive cooling foam
Heat dissipating body contouring cooling foam. Helps ensure a temperature regulated sleep & aids with moisture wicking.
Layer 3 - (pillow top) Aerated lofty polycotton mesh
Allows heat & moisture to transfer out of the comfort layers, increasing airflow and heat regulation.
Layer 4 - (pillow top) Visoelsatic aerated memory foam
Our top layer of 25cm breathable medium memory foam. Made to mould to your body.
Layer 5 - (pillow top) Temp regulated aerated memory foam
Extra layer of 25cm viscoelastic medium memory foam. For additional pressure relief & contouring.
Layer 6 -Open cell adaptive cooling foam
Heat dissipating body contouring cooling foam. Helps regulate temperature & moisture wicking from support layers.
Layer 7 - Medium polycotton
A comfort support layer with added density to aid spinal alignment and pressure relief.
Layer 8 - Natural fibre blended support fillings
Provides cushioning support & relief of pressure points. Naturally breathable & moisture wicking.
Layer 9 - Heat transfer mesh
Features innovatively designed zonal perforation, inviting airflow to the surface. Promotes breathability through the mattress.
Layer 10 - Butterfly & wire edge to edge support
Sleep right to the edge with no sag or dip. Ten butterfly supports incorporated with a wire edge tied in.
Layer 11 - 18cm full height medium 2000 pocket springs
7 zone individually encapsulated, designed to provide precision support.
Our Hybrid Mattress Benefits
Zonal Pressure Relief
Full height 18cm pocket springs
Breathable & Moisture wicking
Handcrafted Made In UK
Complete edge to edge support
Hybrid Mattress Construction
Sleep Trial & Guarantee
Free 2 Person Delivery
Frequently asked questions
Medium Soft
Perfect for light and average weight side sleepers, also suited to very light weight back or stomach sleepers.
Medium
Perfect for above average weight side sleepers, also suited to light weight back or stomach sleepers.
Medium Firm
Suited to heavier side sleepers, average weight back or stomach sleepers or those that like to change sleep positions frequently.
Orthopaedic
Suitable for above average or heavy weight back or stomach sleepers.
Please see our comfort guide for further information
33cm deep.
UK standard sizes, these are:
Single - 90cm wide 190cm long
Small Double - 120cm wide 190cm long
Double - 135cm wide and 190cm long
King - 150cm wide and 200cm long
MASA Sleep mattresses are suitable for all bed frames apart from adjustable beds.
Unfortunately the MASA Aura Refresh range mattress is unsuitable for bunk beds given depth of the mattresses being 25cm.
We can deliver to a room of your choice up to the first floor (1 flight of stairs). If the mattress is going to be delivered to the 2nd floor or higher please get in touch as the couriers do charge a small fee for this.
Unfortunately we do not currently provide this service due to logistic and storage constraints.
Yes the mattress does need to be rotated every 6 weeks for the first 6 months, then every 3 months
The weight of the mattress varies depending on size chosen. Approximate weights are:
Single - 35kg
Small Double - 46g
Double - 53kg
King - 62kg
All of our mattresses are hand manufactured in the UK
Unfortunately we can not promise this due to all mattresses being hand manufactured on order. Depending on delivery routes it may be possible to arrange delivery before 14 days. If this is the case our customer service team will be in contact to confirm this.
Once your order has been received we will contact you to arrange a delivery date. We will initially try and contact by email and then telephone. Please provide a valid telephone number at checkout.