Tge last thing anyone needs when traveling is to sleep in a bedbug infested hotel/motel room or even an air b&b. This will prevent any such thing from happening. Before you even bring your luggage into the room, walk over to the mattresses ( I bring disposable gloves and put them on first), then after putting on my gloves with 1 hand I lift the mattress, and with t h.g e other I use this 2 in 1 UV Flashlight by #Letion . I turn it on to the purple glowing UV light and look. You can see stains and bugs both live and dead. In any case I will leave or ask for another room. In all cases I avoided a major bedbug infestation. It's a nice metal flashlight not made of a c h.g esp plastic. Definitely built to last . At $9.99 you'll want to buy several for all of your traveling friends. Definitely well worth the price!