My heart goes out to your sister, it's a shame this had to happen. I really thought bed bugs were a thing of the past, but not so. The newspaper had articles about apartments being infested, and one hotel that served as a very low cost place for people to stay for short periods of time had to toss their bedding and fumigate the entire building. There was even a warning that if an infested mattress is taken down a stairway that they could hop off for "higher ground" so to speak. My Mother never let my Dad know about the first hotel they were to spend their "honeymoon night" and it had bedbugs, and my Mom refused to sleep there. Can't blame her. Guess that's one way to delay wedding night jitters. She was 19 when she married my Dad and the only man she dated because her father was so strict he wouldn't let her date anyone else. They were together almost 43 years until her heart gave out. They were a good model growing up of what a marriage can be. Thank you for the warning, it never pays to be too careful, especially today.