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Q&A Self inflatable mats: the more air, the more comfortable?

I always read that if a self inflatable mat feels too hard we should blow extra air in it (with the mouth) to make it softer, more comfortable. My 7.5cm thick Vango Adventure feels way too hard af...

4 answers  ·  posted 6y ago by drake035‭  ·  last activity 6y ago by System‭

#2: Attribution notice added by user avatar System‭ · 2020-04-17T22:53:29Z (about 4 years ago)
Source: https://outdoors.stackexchange.com/q/19215
License name: CC BY-SA 3.0
License URL: https://creativecommons.org/licenses/by-sa/3.0/
#1: Initial revision by user avatar drake035‭ · 2020-04-17T22:53:29Z (about 4 years ago)
<p>I always read that if a self inflatable mat feels too hard we should blow extra air in it (with the mouth) to make it softer, more comfortable.</p>

<p>My 7.5cm thick Vango Adventure feels way too hard after blowing extra air in it though, and even theoretically it makes no sense to me: more air = more air molecules packed together = harder not softer!</p>

<p>Is there a way, and if so what is the way to make a self inflatable mat a bit less firm?</p>