The best night’s sleep, guaranteed. Discover our 45 Day Sleep Promise. The best night’s sleep, guaranteed. Discover our 45 Day Sleep Promise.

The Sumptuous Mattress

Our most luxurious blend of the finest natural fibres
Regular price £1,800.00
Regular price Sale price £1,800.00
Sale Sold out
Rated 4.9 out of 5 stars
33 Reviews
  • Cashmere & horsehair provide sublime comfort
  • Organic coir adds superior support & longevity
  • Organic wool regulates your temperature
  • Handmade in Devon since 1999
1. Tension

Our pocket sprung mattresses are available in 3 tensions which offer varying levels of support.

2. Size

Made To Measure
i If you require a non-standard size, select the nearest, larger size above and then add your required dimensions (+ £25 - £100 depending on size). Learn More

Try Me

If you can, we thoroughly recommend visiting one of our showrooms to have a bounce on our mattresses and see our beautiful beds up close. Head to the Showrooms page to find your nearest one.


Delivery is free of charge and our current delivery time for mattresses is 5-6 weeks. You can find more info below or on our Delivery page.

45 Day Sleep Promise

The most important thing for us is that you find exactly the right mattress for you. If you feel it’s not quite right once you’ve slept on it for a week or so, just let us know within 45 days and we’ll find something that works better. Learn More

  • Mattress For Life™

  • Our Sleep Promise

  • 10 Year Guarantee

  • Free Delivery

Our most luxurious pocket sprung mattress blends nature’s most decadent materials for the ultimate in comfort.

No expense has been spared to bring together this harmonious orchestra of the most prized natural mattress making materials - including cashmere and needled horsehair. All perfectly balanced with one aim in mind: a better night’s sleep, naturally.

  • 1. Natural Latex

    From the sap of the Hevea rubber tree. A springy and supportive natural alternative to synthetic foams.

  • 2. Organic Coir

    Organic coconut husk fibres, bound with rubber. Breathable, supportive, durable, and an infinitely renewable material.

  • 3. Pocket Springs

    Hand nested in individual cotton pockets and available in three tensions - firm, medium and soft.

  • 4. Organic Wool

    Sourced from local organic farms. Traps heat when you need it and disperses it when you don’t.

The Sumptuous - where the world’s most luxurious natural fibres and our cleverest design ideas meet. Take a look back into the history of luxury mattress making, and you’ll find fibres such as horsehair and cashmere were once prevalent. They’ve always been prized for their natural spring, breathability and durability, but over the decades have been superseded by cheaper synthetic materials.

We combine these layers of cashmere, and horsehair needled with coconut fibres, with our signature natural latex and organic locally sourced wool. The layers unite to provide superior comfort and breathability, aiding your temperature control and allowing you a more settled night’s sleep whatever the weather. For extra support and long-term rigidity on the most wear-sensitive part of the mattress - its edges - we encase the Sumptuous’ spring unit with a hessian wrapped layer of organic coir.

Technical Information
10 year guarantee
Mattress Depth 26cm
Complies with all relevant British Safety Standards (BS 7177: 2008 + A1 : 2011 : Medium Hazard, and the Furniture and Furnishings (Fire)(Safety) Regulations: 1988)
  • Organic

  • Chemical Free

  • Sustainable

  • Handmade

A Mattress For Life

Over 5 million mattresses end up in landfill every year in the UK alone, a truly terrifying statistic.

Our Mattress for Life Initiative™ ensures this should never happen to our mattresses. When your Naturalmat nears the end of its lifespan (around 10 years from now!), we offer three options to ensure absolutely nothing goes to landfill:

Refurbish | Recycle | Donate

learn more

Clever Covers

​In the UK there are strict fire safety standards that mattresses must pass before they can be sold to the public. An overwhelming majority of manufacturers achieve this certification by treating their products with chemical fire retardants. ​This never sat right with us, and we worked to develop a cover fabric that met the safety requirements without the need for any chemicals whatsoever.

We are also the only mattress manufacturer to add a hypoallergenic finishing pr​ocess to our covers. We treat them with natural extracts to guarantee protection from dust mites and bed bugs - perfect for allergy sufferers, whose conditions are often triggered by these unwelcome bedfellows.