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Comfort trial

Comfort fillings
Firmness rating

Support system
The Gainsborough Mayfair 1000 Pocket Ultra Firm Mattress delivers full body support with a core of traditional pocket springs and a layer of polyester fibres that provide a comforting and soothing firm feel.

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

Soft synthetic fillings create an incredible cosy feel. These fillings are durable and resilient, maintaining its shape and quality. A great balance between comfort and value for money.

A damask cover is a finely woven and durable fabric that is soft to touch. This cover doesn't retain heat and has a long-lasting performance.

Durable edge-to-edge support provides a maximised sleeping surface for a more secure sleep. Sit and lay comfortably right to the very edge with zero 'roll-off' sensation.

Enhances air circulation through the mattresses for a fresher feel. Prevents moisture build-up, creating a more hygienic environment.

Prolong the incredible feeling of your mattress by flipping it over regularly. To enhance the performance and longevity of your mattress, flip over every few months.

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.
Our firmest rating. Highly supportive with a very firm, sturdy feel

About 11.4 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
The Gainsborough Mayfair 1000 Pocket Ultra Firm Mattress delivers an ideal extra firm feel! With supportive pocket springs that encourage better spinal alignment and a breathable polyester pad that adds extra firmness.
Pocket sprung core
Designed with a core of 1000 pocket springs, this mattress provides strong support that is personalised to you. These springs are placed in individual fabric pockets and are secured together to form a unit. This allows for each spring to move independently rather than as a team which significantly reduces motion transfer. This also makes the spring adaptable and reactive so when they sense motion, they spring into action to make sure you are supported. This can encourage better spinal alignment and contribute to a reduction in aches and pains.
Polyester filling
The comfort layer of this mattress encourages a soothing rest. This layer is filled with fine, soft white fibres that are highly breathable. They allow heat and moisture to flow through the mattress to encourage a fresher sleeping environment. Made with recycled fillings and completely recyclable at the end of their life, polyester fibres are a great choice.
Extra firm rating
Rated extra firm, this mattress offers great support to your shoulders, hips and spine. Perfect if you are searching for that ultimate firm mattress. The tufted design secures all layers of the mattress tightly together, increasing durability and adding to the extra firm feel.
This mattress features a dense polyester pad layer that further enhances the firm feel. Polyester is a breathable and durable material. Adding refreshing airflow and greater longevity to the mattress so you can enjoy the new mattress feel for longer.
Zero ‘roll-off’ feel
The smart PowerEdge is formed from durable rod edge wires across the top and bottom of the mattress. This provides excellent edge support, preventing it from sinking or dipping under pressure. These rods are further secured in place with butterfly clips that help to add extra durability. So you can sit and sleep right to the edge without a ‘roll-off’ feel.
Anti-allergy treated
This mattress has received Ultimate Freshness anti-allergy treatment. The treatment reduces your contact with dust mites, helping to ease any skin irritation so you can sleep undisturbed.
Three decades of expertise
Gainsborough established their brand over 30 years ago, focussing on pocket sprung support and finding the perfect fibres to place on top. Their manufacturing site is a 100% zero-landfill facility, utilising recycled and recyclable materials.
Complete with a 10 Year Guarantee to protect against any manufacturing fault should they occur during this period.
Please note: pocket spring count is based on a king size mattress.
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 | Extra firm |
| Comfort fillings | Soft White Fibres |
| Support system | Pocket Springs |
| Pocket spring count | 1000 |
| Edge support | Yes |
| Cover | Damask cover |
| Border | Air vents |
| Double-sided | Yes |
| Guarantee | 10 years |
| Awards & accreditations | Handcrafted in the UK, Approved by the National Bed Federation |
| Fire resistance | Conforms to BS7177: 2008, for use at home |
| Size | Width | Length | Depth |
|---|---|---|---|
| Single | 90cm | 190cm | 29cm |
| Small Double | 120cm | 190cm | 29cm |
| Double | 135cm | 190cm | 29cm |
| King Size | 150cm | 200cm | 29cm |
| Superking | 180cm | 200cm | 29cm |
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 Small Double, Double, King Size and Superking 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 Small Double, Double, King Size and Superking | £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.
Mon-Sat: 9:30am - 5:30pm
Sunday: 10am - 4pm
Mon-Sat: 09:30am - 17:30pm
Sunday: Closed
customerservice@mattressonline.co.uk