I'm not a camping person. I didn't buy it to sleep on it. I got it to use at the beach when I sit on the sand so I don't get dirty, as opposed to sitting directly on the ground.

Conclusion: I’d rather sit directly on the ground; I would have saved the 50€ this thing costs. As for the mechanism (pump bag), no way. If someone is thinking of the same use I wanted to do, they will achieve two things: annoy everyone around them at the beach because it sounds like a ***, and die from sweat because it takes 2 hours.

Not recommended :)