King Size Mattress Toppers

Organic Mattress Toppers For King Size Beds

Naturalmat’s king Size mattress toppers are made from materials including British organic lambswool, which is sourced from our local farms across Devon and Somerset.

We also use rainforest alliance certified natural latex, which is tapped from the Hevea tree. Added cushioning is provided in some king size toppers by recycled denim fibre - this is virgin fibre made from surplus offcuts from the fashion industry.

All of our king size mattress toppers are chemical free. We don’t use chemical fire retardants - instead we ensure that the mattress toppers meet all relevant British fire safety standards by weaving wool through the cotton covers.

Have a look through our range of king size mattress toppers below, and click through to see what each is made of.


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  1. The Silk and Wool Topper
    The Silk and Wool Topper
    From £395.00
  2. The Tremendous Topper
    The Tremendous Topper
    From £425.00
  3. The Terrific Topper
    The Terrific Topper
    From £345.00
  4. The Bovey Topper
    The Bovey Topper
    From £325.00
  5. The Traditional Topper
    The Traditional Topper
    From £325.00
  6. The Trendy Topper
    The Trendy Topper
    From £260.00
  7. The Frome Topper
    The Frome Topper
    From £285.00
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Why use a king size mattress topper?

If you have a king size bed and want to tailor it to your body's unique needs, a topper is for you! Perfect to add a bit more pillowy comfort, or to give an extra layer of bounce, our range of king size mattress toppers provide different feels to finish off your bed. Create a bed that’s perfectly made for you, to ensure you get the best night’s sleep possible.

A mattress topper can smooth over a zip and link join in a king size mattress, or any lumps and bumps in an older mattress. We pride ourselves on creating a high quality product that will lengthen the life of your existing mattress.

Our team in Devon will make your king size mattress topper to order. Our factory is run on solar energy, which powers our sewing machines. Beyond that it will be layered up and pieced together by hand! The mattress topper will be delivered straight to your home or other chosen location, with free delivery across the UK.

Call us on 01392 877 247 if you have a question or would like to speak to an expert about picking the right mattress or any other product for you.  We are available 9-5pm Mon-Fri, Sat 10am-4pm

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