Well: the World is itching as apparently 'bed bugs' are now a thing in mainland Europe 
It's been recommended that we initially seal skirting boards to stop them crawling inside
. I would be on hands and knees for about a week in this house! We also have doors/windows open often ........ mayB a roll of sellotape ready? For ants I put a jar of cheap jam outside the house so that they as well as wasps are attracted to the sweetness. It works.
I wonder what bed bugs like other than human blood 
I don't think they like anything else, that's the problem, plus they can survive for 2 years without a 'meal' and so will still be ready for you even if you've been away or not used a property for that long.
They wait for you to be asleep for about 2 hours before their whole family comes out to feast on you, they inject an anasthetic as they bite so you don't usually wake up.
I woke up feeling really ill in a hotel once, and found a family of them, nymphs, adults, babies, I didn't know what they were but the hotel person told me and took me to another room. I thoroughly washed everything on a high heat when I got home and showered immediately, just to be sure, That was years ago.
I read all about them then because the bites I did get left me feeling unwell and spotty for a week, so in that time I was so disgusted that I read up on them.
I have always thought they didn't come into houses unless someone brought them in, but if there's an epidemic then that's different I suppose. I won't be closing windows etc, I love the fresh air.
Washing bedding on a high heat and then in a dryer for 40 mins on a high heat kills them apparently, but got to remember they will already be hidden in walls etc, so if they are sweeping europe in the way they are saying (and it's not an exaggeration), the best bet is prevention, regular vacuuming of mattresses, sealing the skirting as you say, etc. Sad, but I'd rather the hard work than bed bugs any day