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Comfort trial

Comfort fillings
Firmness rating

Support system
Enjoy all the benefits of deeply nourishing sleep with this beautifully handcrafted, natural mattress. Featuring 100% natural Yorkshire wool, it will wrap you in luxury. Over 5000 pocket springs care for your body whilst the smooth cover is soft to the touch. Perfect!

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

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.

Hemp is an eco-friendly fibre that is naturally breathable and durable. It is also a natural insulator so it adapts to any temperature condition.

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.

Offering a soothing night's rest by evenly distributing your body weight across the mattress. The pressure point relief provides the ultimate relaxation needed for a deep slumber.

A traditional and elegant design that holds fillings in place whilst enhancing the stability of the mattress. The luxurious tufting ensures zero shifting, shape loss or sagging.
Firmer than a medium mattress for extra support

About 11 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.

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!

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 traditional technique which creates a sturdier and more durable border. The stylish hand side-stitching method is used to improve longevity and edge-to-edge support.

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
Drift off to dreamland with the gorgeously plush Harrison Spinks Grassington 5750 Pocket Mattress.
Featuring generous layers of natural fillings and thousands of pocket springs, this medium-firm mattress will feel tailor-made, just for you. It's exclusive to us at Mattress Online.
Smooth and decadent
Handcrafted from a fine blend of 100% Yorkshire wool and wrapped in a soft-touch cover, the Grassington will envelop you in comfort.
Perfect temperature, year-round
A natural insulator, wool gently regulates your body temperature during the changing seasons. You'll feel cooler in summer and warmer in winter.
Thanks to the cooling layers of cotton, flax and hemp, this mattress will help if you overheat in the night. These clever fibres are breathable, for a fresher feel.
Medium-firm feel
This is the perfect mattress if you need a little extra support. We rate it medium-firm - so it's ideal if you prefer a slightly firmer, more supportive feel.
Looking for a firmer mattress? The Harrison Spinks Knaresborough features orthopaedic support and and a truly firm feel.
Total body support
Harrison Spinks' Cortecâ„¢ Quad Core spring system is at the heart of the Grassington. Every spring is encased in a breathable pocket, providing extra airflow around your mattress.
Featuring an impressive 5750 pocket springs, you'll enjoy perfect support for every area of your body. Each spring reacts to your unique shape, for greater comfort and pressure relief. This spring count includes not only traditional pocket springs but also mini springs. Mini springs offer extra comfort within the spring system for a blissful rest.
The perfectly-supportive pocket springs help reduce motion transfer and roll-together. That means you and your partner can experience a deeper, more peaceful sleep.
Better for you and our planet
Harrison Spinks operate with a great deal of love and care for our planet and their customers. This is why they make all their mattresses right here in the UK to reduce their carbon footprint. Their luxury hemp and flax fibres are all grown on their farm which also houses their impressive collection of award winning sheep. They use sustainable 100% British wool in their mattresses to offer indulgent softness and comfort.
Years of comfort
This is a mattress that will stand the test of time. Thanks to expert hand tufting and 2 rows of side-stitching, all the sumptuous fillings are carefully locked in.
Conveniently designed
The Grassington is designed for easier care. Since it's single-sided, you'll never need to turn it over.
With 4 built-in turning handles, it's easy to rotate. We recommend doing this once every 6 months, to keep it in the great condition you expect.
Sleep deeper, wake refreshed
Enjoy well-deserved rest and relaxation with the natural comfort and handcrafted goodness of the Grassington. Ready for you tomorrow, deeper sleep is only a day away!
Weights: Single: 26kg, Double: 38kg, King Size: 45kg, Superking: 54kg
This mattress comes with a free 60-night comfort trial - like all of our mattresses!
The trial allows you to test your mattress for 60 nights, and if you don't like it, you can swap it!
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 don't like the feel of your mattress after 30 nights, simply get in touch! We'll be happy to swap it for you.
| Firmness | Medium to firm |
| Comfort fillings | Wool, Cotton, Hemp, Tufted |
| Support system | Pocket Springs |
| Allergy care | Hypoallergenic |
| Pressure relief | Yes |
| Border | Hand side-stitched |
| Turning handles | 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 | 28cm |
| Double | 135cm | 190cm | 28cm |
| King Size | 150cm | 200cm | 28cm |
| Superking | 180cm | 200cm | 28cm |
| Emperor | 200cm | 200cm | 28cm |
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.
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 | £17.50 |
Delivery to the front door of your building Free upgrade for Double, King Size, Superking and Emperor to your room of choice | 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 Free upgrade for Double, King Size, Superking and Emperor | £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.
A balanced snapshot of what customers love (and what they don't), generated by AI.
I loved our previous mattress but we'd had it so long, we felt we should buy a new one... but I was apprehensive. There was no need to be... it's brilliant... comfortable and supportive.
Verified Purchase
Appears well made and comfortable
Verified Purchase
Nothing wrong with the product, but I should choose ‘firm’ . It is too soft for me
Verified Purchase
Reply from MattressOnline.co.uk, 2 months ago
Hi Ann I am sorry you are not finding your mattress comfortable - we appreciate the feedback. The mattress you have purchased does come with a 60-night Comfort Trial; if you are not finding it comfortable you would be more than welcome to exchange this for something more suitable. If you would like to make contact with our Customer Service team on 01709 780881 or customerservice@mattressonline.co.uk, we can discuss the options with you. Kind regards Charlie
I was hoping that this mattress will be suitable for me but I still wake up with back pain! Apart from this It seems that this mattress is well made.
Verified Purchase
Happy with the mattress it was exactly as described and delivered on time
Verified Purchase
My husband thinks the mattress is amazing. Best sleep ever he thinks. Slightly too hard for me . But its getting comfortable.
Verified Purchase
The mattress appears well made, we added a good quality topper and the combination is very comfortable. Everything about the purchase was seamless. Disappointing that within weeks it has been reduced by 40% which sort of devalues it.
Verified Purchase
This is so subjective. It's undoubtedly a great quality mattress. We couldn't agree between a medium and a firm mattress, so we went in the middle (medium firm). Myself, a back sleeper, loved it, but my wife, a side sleeper, just couldn't get to grips with it. Overall, it was just far firmer than most medium-firm we had tried. Luckily, the MattressOnline exchange process was amazing. The replacement (medium) was with us the next day and we're both really happy with it. A great service and would certainly recommend buying from MattressOnline
Verified Purchase
VERY COMFORTABLE AS EXPECTED AS WE HAVE BEEN TO VARIOUS SHOPS TO TRY THEM OUT FIRST, ALONG WITH THE 90 DAY EXCHANGE GUARANTEE, WHICH PLEASES ME TO SAY WE PROBABLE WIILL NOT USE.
Verified Purchase
A superb mattress, well worth the investment.
Verified Purchase
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customerservice@mattressonline.co.uk