Tests & reviews

Klymit - Insulated Static V - Sleeping mat tested

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Question from Reinhold
04.01.2023
What is the R-value of this sleeping mat?

The R-value is stated here as 1.9 but elsewhere online, it's also stated as 4.4 - which is correct? I should add that when I filter out sleeping mats with R-rating over 3 on this website, this shows up as one result.

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Adrian (Community) | Customer Service
05.01.2023 08:23

Hi Reinhold,
The R-Value is 1,9 ASTM F3340-18 . The following link will provide some interesting reading for you:
https://www.klymit.eu/pages/sleeping-pads-astm-r-value?_pos=1&_sid=90f1ba10b&_ss=r

Similar to EN/ISO ratings for sleeping bags, the ASTM R-value standard ensures an “apples-to-apples” comparison of R-value for the sleeping pad market. R-value is a measure of a material or structure’s thermal resistance to heat loss. In this case, the structure is your sleeping pad. The higher the R-value, the more thermally resistant the material or structure is. This number gives a definitive rating for customers to compare the warmth of various pads. Thereby, allowing them to find the right sleeping pad for their needs. The problem is , not all manufactures have conformed to the new standards like Klymit and Thermarest have and some manufactures do not have their mattresses tested at all. We can only state the information made available to us.

This is what customers from around the world say:
Claudia
09.02.2019

87% have found the reviews
by Claudia helpful

The thread was edited on 03.02.20

  • Advantages
    Easy to pack up
    Compact
    Comfortable
    Price / performance
    Insulates well
    Surface not slippery
    Lightweight
  • Disadvantages
    Difficult to inflate
Christoph
03.07.2016

80% have found the reviews
by Christoph helpful

  • Advantages
    Lightweight
    Easy to pack up
    Insulates well
    Compact
    Price / performance
    Surface not slippery
    Easy to inflate
Hanna
12.11.2019

75% have found the reviews
by Hanna helpful

  • Advantages
    Easy to pack up
    Easy to inflate
    Insulates well
    Lightweight
Ute
29.03.2022

  • Advantages
    Comfortable
    Lightweight
    Compact
    Price / performance
  • Disadvantages
    Difficult to inflate
Dagmar
13.03.2020

62% have found the reviews
by Dagmar helpful

  • Advantages
    Comfortable
    Surface not slippery
    Easy to pack up
    Lightweight
    Easy to inflate
Janine
20.10.2021

81% have found the reviews
by Janine helpful

  • Advantages
    Compact
    Insulates well
    Comfortable
    Lightweight
Holger
23.11.2021

50% have found the reviews
by Holger helpful

  • Advantages
    Lightweight
    Easy to pack up
    Compact
Eki
29.11.2021

  • Advantages
    Lightweight
Maarten
20.01.2023

100% have found the reviews
by Maarten helpful

The thread was edited on 20.01.23

  • Advantages
    Lightweight
    Surface not slippery
    Price / performance
    Easy to inflate
    Compact
Riccardo
08.11.2022

96% have found the reviews
by Riccardo helpful

The thread was edited on 08.11.22

  • Advantages
    Surface not slippery
    Price / performance
    Robust
    Compact
    Lightweight
    Comfortable