Not everyone who is bitten by bedbugs actually reacts to them. many people have no idea they have an infestation till a guest comes to stay that is allergic to them.

Bed bugs are being spread by travelers - so obviously, they're hitching rides on clothing and in luggage - so it's not unreasonable to expect them to hitch a ride in your clothing or your luggage if you've left them open on a soft surface. Bed bugs are becoming increasingly resistant to chemicals.

I do have a silk liner bag - but I'm not entirely certain why people think bed bugs won't crawl into a silk liner bag just because y ou're in it?

I know I'd be extremely upset if I had a bed bug infestation, so when I know that I have been around them, I take preventative measures. It doesn't cost me anything and it's not really all that much hard work. Just like if I have been staying with a friend or whatever that i know has roaches - I leave my suitcase & such in the shed or outside for however long and inspect very carefully before I will take it into the house.

A landlord once gave me roaches (gave me a used fridge that was infested with them) and it took me about 3 or 4 months of intensive chemical warfare before I managed to get rid of them. It wasn't fun.