Infestations of the little blood sucking bugs are increasing at hotels around the world. BusinessWeek reports there are some clues to look for to tell if the hotel you’re staying at has a bedbug problem on their hands.

Check if the mattress has an “allergy-free” (formerlly known as bug-free) bed cover on it. Hotel dogs walking around with sniffing dogs in the lobby are also a good indicator.

Keep in mind that the little critters are found in hotels of varying classes, including 4 and 5-star ones. Bedbugs can live without a meal for more than a year and hitch rides around the world in your luggage. Lovely.

[via Consumerist]