This is a great mattress for car camping! The 4 inch thickness is awesome, you can deflate it to make it plush or if you prefer firm you can add extra air to it. I’ve also used it for when I have guests/family stay over night, it’s better than sleeping on the couch or floor.
I did notice they have another Qomotop mattress listed for a bit more… but when I look at the specs on both of them in woot, they’re exactly the same, so this is a better deal than the other one that is a bit more $$.