• Decathlon have a new range of light weight matts that look a lot like thermarest ones but obviously much cheaper. I got a small one, £24.99, the larger is £34.99

    Small - 350g packed size - 1.2L
    Large - 510g packed size - 1.7L

    No idea about quality at this stage

  • I got one of the larger ones a couple of months ago and the couple of times I've used it it has been great. Temps around 3-4c and it was enough to keep me comfortable in the buff with a sleeping back as a cover.

    A few reviews said that it let down after a while but mine has been fine, and Decathlon seem to replace any defective ones no questions asked.

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