The Tremendous Topper

Transform your mattress with our most popular topper
Regular price £530.00
Regular price Sale price £530.00
Sale Sold out
Rated 4.9 out of 5 stars
33 Reviews
  • Most reviewed, approved by IndyBest
  • Top of the range, luxurious topper
  • Made with natural & organic materials
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. Learn More
Free Standard Delivery
Delivered within 4 working weeks

Try Me

If you can, we thoroughly recommend visiting one of our showrooms to try our toppers 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 toppers is 5-6 weeks unless it says ‘Free Next Day Delivery’ above. You can find more info below or on our Delivery page.

Can We Help?

If you have any questions please don’t hesitate to get in touch. You can click on the live chat icon in the bottom right, book a video consultation with our showroom team, or head to the contact page to find our phone & email.

  • Organic

  • Chemical Free

  • Sustainable

  • Handmade

Our top of the range, most popular, and reassuringly well reviewed topper, that can instantly transform any mattress

"We give the Naturalmat Tremendous Topper a two-thumbs up, full-marks score.... It is incredibly comfortable and you’d be hard pushed to find a more substantial one.... Everything about this topper shouts 'premium'.”

– The Independent (read the full review)

  • 1. Cashmere & Bamboo

    From the soft fleece of cashmere or pashmina goats, a luxuriant layer of insulation and breathability.

  • 2. Natural Latex

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

  • 3. Organic Wool

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

The Tremendous is far from your average mattress topper. We combine the most luxurious natural materials with a level of handcraftsmanship equal to our most expensive mattresses.

We start with a core of springy, supportive natural latex, and surround this top & bottom with sumptuous cashmere and locally sourced organic wool. We then wrap these premium natural fibres in the same clever covers we use across our mattress range, which are naturally hypoallergenic and meet all safety standards without the need for any nasty chemical fire retardants.

This blend of natural materials all add up to a lofty 7cm deep topper that can transform an uncomfortable mattress, and dramatically improve air circulation to prevent you overheating at night (a particular issue with memory and other synthetic foam mattresses). Alternatively the Tremendous can simply add an extra layer of body hugging comfort to elevate your bed’s luxury to the next level. 

Technical Information
2 year guarantee
Topper Depth 7cm
Complies with all relevant British Safety Standards (BS 7177: 2008 + A1 : 2011 : Medium Hazard, and the Furniture and Furnishings (Fire)(Safety) Regulations: 1988)
  • 2 Year Guarantee

  • Free Delivery

  • Pay in 3

Why Buy a Topper?

A mattress topper is essentially a very thin mattress which is placed on top of your new or existing mattress to alter how it feels.

This could be to increase breathability, to adjust the softness of your mattress, or simply to provide an added layer of comfort and opulence!

read our toppers guide

Clever Covers

​In the UK there are strict fire safety standards that mattresses & toppers 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 toppers.

Rated 4.9 out of 5 stars
Based on 33 reviews
33 reviews
  • PK
    Peter K.
    Verified Buyer
    I recommend this product
    Rated 5 out of 5 stars
    3 weeks ago

    We are very happy with te Toppers. Great Material…Great Help.

    Thank you again…

    N Profile picture for Naturalmat
    11 seconds ago

    Thank you very much Peter. We appreciate your feedback.

  • WM
    Wendy M.
    Verified Buyer
    I recommend this product
    Rated 5 out of 5 stars
    1 month ago
    Tremendous indeed!

    Excellent - made a firm mattress very comfortable. Magically keeps you cool too! Definitely worth the investment.

    N Profile picture for Naturalmat
    1 month ago

    Thanks Wendy, so happy to hear you are enjoying your topper.

  • IB
    Ian B.
    Verified Buyer
    I recommend this product
    Rated 5 out of 5 stars
    3 months ago
    Excellent mattress topper

    We bought two custom toppers for our campervan. They have made our beds superb.

    Excellent quality and service. Expensive but worth it.

    N Profile picture for Naturalmat
    2 months ago

    Thank you Ian, really happy to hear the toppers have improved your campervan beds.

  • CP
    Cheryl P.
    Verified Buyer
    I recommend this product
    Rated 5 out of 5 stars
    3 months ago

    We have no complaints after receiving our new topper. It is very comfortable and was delivered in secure packaging in the time agreed.

    N Profile picture for Naturalmat
    3 months ago

    Thank you Cheryl. Very happy to hear this.

  • DD
    Dr David and Anne L.
    Verified Buyer
    I recommend this product
    Rated 5 out of 5 stars
    4 months ago
    Delighted with our purchase.

    We are delighted with our tremendous Topper which we have placed on top of the Cashmere Mattress. When it was delivered we were told that it’s rare to use a topper on this mattress and we might not need it. We bought it to give extra height. Glad we did as we couldn’t be more comfortable. We may get this topper to put on other mattresses.

    N Profile picture for Naturalmat
    4 months ago

    Thanks so much for your feedback. Very happy to hear you like the topper.

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What You Need To Know About Delivery

  • When can I expect delivery?

    Our current delivery time for toppers is 4 weeks unless it says 'Free Next Day Delivery' above.

  • How does my topper get to me?

    Your topper will be delivered by our logistics partner and you will receive an email notification when your order has been dispatched.

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 or topper.