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 Lambswool Mattress

Our most popular Natural Fibre mattress
Regular price £1,450.00
Regular price Sale price £1,450.00
Sale Sold out
Rated 5.0 out of 5 stars
19 Reviews
  • Our medium firmness natural fibre mattress
  • Made from natural & organic materials
  • Hypoallergenic & chemical free
  • Handmade in Devon since 1999
1. 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 4-5 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

The most popular mattress in our Natural Fibre range. Favoured by our customers who prefer a firmer, denser level of comfort.

The Lambswool is handcrafted with layers of natural latex and organic wool, around a thick core of organic coconut fibres, known as coir. This central layer helps provide a denser than average feel, perfect for those looking for a firmer mattress. A firm fan favourite, you could say.

  • 1. Organic Wool

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

  • 2. Natural Latex

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

  • 3. Organic Coir

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

Our range of Natural Fibre mattresses gain their levels of comfort and support through the layering of our carefully selected natural materials. Organic coconut fibres, known as coir, provide stability. Natural latex, tapped from the Hevea rubber tree, brings the bounce. This duo are complimented by a layer of beautiful locally sourced organic wool, that delivers exceptional temperature control.

In the Lambswool - our most popular Natural Fibre mattress - the firmer, denser feel comes from its core. The central layer of the mattress is made up of a thick sheet of organic coir, with thousands of coiled coconut fibres imparting a firmer feel. We sandwich this coir with two slimmer layers of natural latex to produce a mattress second only to our Mohair on the firm end of our mattress tension guide. Firmer and denser than most, but still blissfully breathable, supportive and comfortable.

Technical Information
10 year guarantee
Mattress Depth 21cm
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.

Handmade in Devon

At Naturalmat, we believe that people, not machines, make a superior, long-lasting product. Our team of craftspeople ensure every stitch, every fibre, every tufting button and every cover is painstakingly created, teased and checked. That’s why we proudly stamp ‘Made by hand in Devon’ on all of our mattresses.

Rated 5.0 out of 5 stars
Based on 19 reviews
19 reviews
  • SB
    Sarah B.
    Verified Buyer
    I recommend this product
    Rated 5 out of 5 stars
    2 days ago
    Comfortable and breathable - well worth the money

    We found it slightly too firm at first but, as promised, it has softened/adjusted in use and is now extremely comfortable. In particular, the breathability and temperature regulation is a huge improvement on our previous (memory foam) mattress - I used to regularly get far too hot, but no longer - and we’re now both sleeping very well. Very happy indeed with the mattress.

  • XY
    Xizi Y.
    Verified Buyer
    I recommend this product
    Rated 5 out of 5 stars
    5 days ago
    The most comfortable mattress EVER

    I’m so happy about this mattress. I’ve never had mattress this comfortable with nothing to complain about. The sleep zone at the shop was very helpful for me to physically try out and decide on the mattress that fits my needs.

    N Profile picture for Naturalmat
    4 days ago

    So pleased to hear you're loving your new mattress, thanks Xizi!

  • SL
    Sheila L.
    Verified Buyer
    I recommend this product
    Rated 5 out of 5 stars
    2 weeks ago
    Lambswool mattress

    Thank you for the help you gave me and the patience while I tried and tested different mattresses. I am enjoying quality sleep and I am waking without aches and stiffness. Brilliant purchase.

    N Profile picture for Naturalmat
    2 weeks ago

    Thanks Sheila, we are very happy to hear you are sleeping better now.

  • JM
    James M.
    Verified Buyer
    I recommend this product
    Rated 5 out of 5 stars
    1 month ago
    Lambswool Mattress

    Super comfortable, met and exceeded our expectations - Thank You!

    N Profile picture for Naturalmat
    1 month ago

    Thank you James for your kind words.

  • MA
    Mike and Shirley H.
    Verified Buyer
    I recommend this product
    Rated 5 out of 5 stars
    1 month ago

    Great product and very comfortable. Also customer service is first rate.

    N Profile picture for Naturalmat
    1 month ago

    Thanks so much! We hope you sleep well on your Lambswool

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What You Need To Know About Delivery

  • When can I expect delivery?

    Our current delivery time for mattresses is 4-5 weeks. We’ll be in touch the week before your delivery date to discuss a convenient time and talk through any access issues for your property.

  • How does my mattress get to me?

    Our mattresses are delivered by our own two man team who will take it up to your bedroom and get it all set up. We deliver our mattresses in reusable duffel bags (rather than plastic) which we will then take away again.

  • Can you take away my old mattress?

    Absolutely! Please add the Mattress Recycling product to your order and your old mattress will either be recycled, or if it’s in good condition, it will be cleaned and donated to charity.

Ready For A Bounce?

Visit our showrooms in London, Cheshire, Cotswolds or Devon and our expert team will help you find the perfect bed & mattress.