The Tremendous Topper

Our Thickest And Most Luxurious Topper
Regular price £620.00
Regular price Sale price £620.00
Sale Sold out
4.8
Rated 4.8 out of 5 stars
43 Reviews
  • Adds a sumptuous layer of comfort and support
  • Organic wool and cashmere provide natural breathability
  • Handcrafted in our Devon workshop
  • Free delivery in 3-5 working days
1. Size


i If you require a non-standard size, select the nearest, larger size above and then add your required dimensions. If you require a size larger than Emperor, please get in touch for a quote. Learn More

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

Delivery is free of charge and our current delivery time for toppers is 3-5 working days. 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

  • Local

  • 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. An overwhelming majority of manufacturers achieve this certification by treating their products with chemical fire retardants, but ​this never sat right with us. So we developed a covering fabric woven exclusively from cotton and wool 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.

4.8
Rated 4.8 out of 5 stars
Based on 43 reviews
43 reviews
  • VA
    Val A.
    Verified Buyer
    I recommend this product
    Rated 5 out of 5 stars
    6 days ago
    improvement on perfection

    We bought the Cashmere mattress in February 2025. At the time of purchase we tried the Tremendous Topper in the showroom. The staff were very helpful and advised us to try the mattress before committing to buying the topper.

    Sure enough we found the mattress a little firm. I contacted Naturalmat and they advised us to let the mattress settle for a short period before committing to ordering the topper. We are in our seventies and we decided to order the topper, this was delivered within five days to suit our engagements. We now believe we have the perfect combination and have never slept so well in our five decades together!

    Our old mattress was taken for recycling, altogether an eco conscious pat on the back for Naturalmat.

    The sound advice and lack of sales pressure makes the purchase an enjoyable process.

    N Profile picture for Naturalmat
    Naturalmat
    14 seconds ago

    Thanks so much Val for your honest review. We really appreciate it. Glad you are sleeping better than ever now.

  • JL
    Jan L.
    Verified Buyer
    I do not recommend this product
    Rated 2 out of 5 stars
    2 months ago
    Not so tremendous topper

    We bought our topper a week or so before Christmas as a Christmas gift to ourselves. Excellent service in the shop in Witney (we also bought a duvet) and the delivery was much quicker than expected so we got the topper just in time for Christmas. Great so far!

    The delivery wasn't great - they just dumped it half in the porch, half in the drive without knocking (even though we were in) which meant the wrapper got dirty.

    Nothing could have prepared us for the overwhelming smell of sheep from the topper when we unwrapped it! I would have expected when purchasing an item as expensive as this (almost £900), that it would have been aired beforehand? I read that the the smell quickly goes so we put up with it, but a month later, there is still a whiff of sheep about it. Even our cat smells of sheep! I rather dread a hot and humid summer night and it's hard to imagine 5 star hotels putting these on their beds.

    I read that there is a tolerance of 2cm in measurements (although I can't see why the fact that this is handmade means it can't be made to the correct size?) but our topper measures 176cm wide between the binding, which is frankly annoying.

    The topper was lovely for the first few nights but settles very quickly. It's still quite comfortable but not as sumptuous as I'd expected. Even with turning and vigorous shaking (making it even more smelly!) the topper still dips each side.

    I really wish I could be more enthusiastic but for an item of this price I'm very disappointed.

    N Profile picture for Naturalmat
    Naturalmat
    1 month ago

    Dear Jan, thank you for your honest feedback. After replacing your topper to make sure the measurements are 180cm within the binding (making the overall topper slightly larger) we are sorry to hear that the natural sheep aroma is still present for you and you would like to return the replacement topper as well. We take all your points on board and are sincerely sorry that our Tremendous Topper did not meet your expectations.

  • CC
    Clive C.
    Verified Buyer
    I recommend this product
    Rated 5 out of 5 stars
    3 months ago
    Brilliant topper

    We’ve recently purchased this topper and it’s been a magnificent final layer on our bedding system.

    Having endured various combinations of other products over the years, we decided to try out various combinations of Naturalmat mattresses and toppers, at one of their showrooms, and decided this was just the perfect choice for us.

    We’ve even now started using other places in the uk for overnight stays which use Naturalmat products, we rate them so highly.

    We’ve even now so look forward to our good nights sleep…😴

  • AT
    Adam T.
    Verified Buyer
    I recommend this product
    Rated 5 out of 5 stars
    4 months ago
    The comfiest

    This mattress and topper is easily the comfiest bed I have ever slept in. The only issue is it makes me want to spend significantly more time in bed!

    N Profile picture for Naturalmat
    Naturalmat
    4 months ago

    Thanks Adam, we are (not) sorry to hear you like spending time in bed even more now.

  • JP Profile picture for Jackie P.google logo
    Jackie P.
    Verified Buyer
    I recommend this product
    Rated 5 out of 5 stars
    9 months ago
    Good investment and great service

    Enjoyed having it to get a ‘hotel’ luxury feel at home - had excellent service and care from the Derwent House Living team in the Witney showroom of Naturalmat.

    N Profile picture for Naturalmat
    Naturalmat
    9 months ago

    Great to hear you had a fantastic experience at our Cotswolds showroom, we'll let the team know. Thanks Jackie!

What You Need To Know About Delivery

  • When can I expect delivery?

    Our current delivery time for toppers is 3-5 working days.

  • 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.

VISIT OUR SHOWROOMS