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 £1,380.00
Regular price Sale price £1,380.00
Sale Sold out
Rated 5.0 out of 5 stars
10 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 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

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 10 reviews
10 reviews
  • LH
    Lynn H.
    Verified Buyer
    I recommend this product
    Rated 5 out of 5 stars
    2 weeks ago

    So lovely to wake up with no aches and pains, and feeling 2 inches taller.

    N Profile picture for Naturalmat
    12 seconds ago

    Thanks Lynn for your feedback. Pleased to hear it.

  • JF
    John F.
    Verified Buyer
    I recommend this product
    Rated 5 out of 5 stars
    3 months ago

    Very good

  • JT
    Jane T.
    Verified Buyer
    I recommend this product
    Rated 5 out of 5 stars
    4 months ago

    The mattress is perfect thank you and very comfortable. I am unwell at this time and need plenty of rest (just diagnosed recently with cancer) and I appreciate your efficient service to deliver the new mattress. I will need it!

    N Profile picture for Naturalmat
    3 months ago

    Thanks Jane. We hope your sleep is well on this mattress.

  • RW
    Rowena W.
    Verified Buyer
    I recommend this product
    Rated 5 out of 5 stars
    8 months ago
    Super Comfortable

    We spent a great deal of time choosing this mattress as we had very particular needs (a previous spinal injury) which wasn't being helped by our existing mattress. Ali at Naturalmat Cotswolds in Witney was truly superb in showing us each mattress and giving us time and space to test and choose. The delivery team at Naturalmat were equally fantastic.

    The mattress is supremely comfortable and I actually get a long period of unbroken sleep now in comfort. For those people that haven't had a wool mattress before it is worth pointing out that initially there will be a 'aroma' from the lanolin and it may feel like you have a sheep residing in your bedroom. Always having lived rurally it didn't bother me, and it eventually fades but worth knowing if you aren't aware!

    We also bought the Tremendous Topper which has added to the sense of deep comfort. Highly recommended.

    N Profile picture for Naturalmat
    8 months ago

    Dear Rowena, Thanks so much for your feedback. You are absolutely right, the initial "aroma" which is typical for natural fibre mattress fades away.

  • SA
    Susanne A.
    Verified Buyer
    I recommend this product
    Rated 5 out of 5 stars
    8 months ago
    Happy Dreams

    Excellent mattress, healthy materials, cosy and exactly the strength I need. Delivery service was very flexible.

    N Profile picture for Naturalmat
    8 months ago

    Thanks so much Susanne, enjoy your new mattress!

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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.