How hot is the air that comes out of my blow-dryer? If it’s hot enough, couldn’t I just blow-dry the mattress and sheets at the hotel for a few minutes to get rid of any bugs I didn’t see when I checked the sheets and mattress?
I don’t think a blow-dryer would work. Even if it were hot enough, you’d have to treat every possible location for the right amount of time (a few minutes or more).
Better to use google to get some good tips, here’s one site I found interesting:
http://abcnews.go.com/Travel/tips-avoiding-hotel-bed-bugs-traveling/story?id=11748855
No. The heat coming out of a hair dryer is diffused too quickly to be helpful. You wouldn't be able to penetrate the whole mattress with high enough heat for long enough. The bugs would just feel the heat coming and move.