Grumpy Old Geeks Topics Sleeping in cars Topic Sleeping in cars 2 mentions in 1 episode The hosts discuss whether an inflatable backseat mattress would make sleeping in a compact car practical. Mentions 144: Internet of Poop Jan 22, 2016 49:21 why pay for hotel rooms when you can sleep comfortably in your car 49:36 it's kind of a customized air mattress for your backseat