My DD travels for her job. She has learned to strip the bed, turn over the mattress and look at it with a flashlight. You can see if there is an infestation. She has turned in several hotels for having bedbugs. She learned her lesson when she had to toss a an expensive suit and shoes, purse, and a full cosmetic bag. She sure was glad she didn't bring her suitcase and computer to the hotel room. It's very expensive to get rid of them once in your home.