If somebody is just looking for a place to crash don’t expect to get paid. That frankly sounds a bit rude, insane even. Although if they’re staying with you for a while as-in on business or vacation then you should get compensated.
A fair value of their stay is: $0
Most people do not charge for such a short stay. However a small gift card would be nice gesture.
Hey, what's up? The name is Bob and I created this whole thing single-handedly. A few years ago I made the website bit after a moving day fit of rage. See, back then I was driving a truck, so to everyone ever that meant I was running a shipping company. Not organized? Don't worry about it, no one ever is.