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Comfort trial

Comfort fillings
Firmness rating

Support system
Sumptuous, luxurious comfort with the Harrison Spinks Diamond 25000 Pocket Mattress. Designed with award-winning Cortec™ Quad springs and plush natural wool, cotton, cashmere and mohair.

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.

Stay snuggly all night long. Perfect all year round, wool is a natural insulator and has great temperature regulating properties.

Natural cotton fibres create a perfectly fresh sleeping environment. The soft fillings regulate your body temperature and wicks away moisture.

Strong, durable fibres with incredible natural insulating properties so you can enjoy ultimate cool comfort all night long. The durable fibres enhance the longevity of a mattress.

A luxuriously soft and gentle natural filling. Cashmere is incredibly breathable and has great moisture-wicking properties. Lightweight and flexible for optimal support.

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!

About 12.6 inches deep. Depth is an important factor when buying a mattress as it can affect the suitability for particular bedding, mattress toppers and bed frames.

For your peace of mind

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

This product conforms to BS7177: 2008, for use at home

For the highest standards of quality and safety
Indulge in the luxurious bliss of the Harrison Spinks Diamond 25000 Pocket Mattress.
Specialised Cortec™ Quad springs
700 of Harrison Spinks award-winning Cortec™ Quad springs form the core of this mattress. These springs are secured in groups of four within one fabric pocket, increasing the responsive nature of the pocket springs. Encouraging enhanced full body support for a blissful rest.
Joined in a glue-free design, not only are they easier to recycle and better for the environment but are more flexible. Bending in all directions to provide full body support in every position. Designed by experts, Cortec™ Quad springs help to promote better spinal alignment to reduce aches so you can wake feeling revitalised.
Personalised to you
Layers of 24300 mini springs provide greater points of contact with your body, helping them provide comfort where you need it.
Mini springs deliver added bounce, compressing and rebounding based on your unique shape and movement. Providing unstoppable comfort to delicate areas like your lower back and hips. These springs can also help enhance airflow through the mattress, promoting a fresher feel.
Luxurious British wool
Layers of British wool offer snug comfort, providing a cushioned sleep space for ultimate luxury. Inherently breathable yet insulating, wool fibres are perfect for hot or cold sleepers and all seasons.
Joined by a layer of wool, mohair and cashmere to enhance the indulgent feel.
Moisture wicking comfort
A blend of British wool, hemp and flax fibres increase durability within the comfort layers. Wool is naturally springy and resilient whilst hemp and flax fibres are robust. These fibres are highly breathable, helping to increase airflow and dispel moisture.
Additional layers of cotton, hemp and flax fibres wick away moisture to enhance the refreshing feel. Hemp and flax fibres are hypoallergenic and antimicrobial to help reduce contact with bacteria, allergens and dust mites in bed.
Perfect in every season
Unique seasonal turn design features a warming winter side and a refreshing summer side. The warming side places wool comfort layers closer to the surface. The summer side has a sleep surface with moisture wicking cotton closer to you.
Double-sided, you can get double the use of your mattress - be sure to rotate top to toe and flip seasonally to ensure even wear.
Trusted quality
The Diamond mattress has been made in the UK, adhering to strict health and safety regulations and is naturally fire retardant. Rest assured you are receiving the best quality for a dreamy slumber.
Complete with a 5 Year Guarantee and additional 5 Year Warranty thereafter.
This mattress comes with a 60-Night Comfort Trial - like all of our mattresses!
The trial lets you test your mattress for up to 60 nights. If it's not quite right for you, you can exchange it for a new one.
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.
| Firmness | Soft to medium, Medium, Firm |
| Comfort fillings | Mini Pocket Springs, Wool, Cotton, Mohair, Cashmere |
| Support system | Pocket Springs |
| Double-sided | Yes |
| Single-sided | Yes |
| Guarantee | 5 years |
| Awards & accreditations | Handcrafted in the UK, Approved by the National Bed Federation |
| Fire resistance | Conforms to BS7177: 2008, for use at home |
| Downloads | Harrison Spinks Care and Guarantee |
| Size | Width | Length | Depth |
|---|---|---|---|
| Single | 90cm | 190cm | 32cm |
| Small Double | 120cm | 190cm | 32cm |
| Double | 135cm | 190cm | 32cm |
| King Size | 150cm | 200cm | 32cm |
| Superking | 180cm | 200cm | 32cm |
Please allow for a tolerance of +/- 2cm
The following delivery methods apply to mainland England and most of Scotland, Wales and Northern Ireland. Please read our delivery page for more information.
Delivery within 3-5 Weeks We’ll call you to arrange delivery | FREE |
Delivery to the room of your choice | Yes |
Mattress recycling We'll take away your old mattress | £35.00 |
Need further information? Please visit our Delivery page.
Mon-Sat: 9:30am - 5:30pm
Sunday: 10am - 4pm
Mon-Sat: 09:30am - 17:30pm
Sunday: Closed
customerservice@mattressonline.co.uk