There is a devise that is a perfect tool to monitor whether you have active bed bugs in your bed or trying to climb onto your bed. The device is called a Climb Up Interceptor. It's a simple round "coaster" type piece of plastic with an outside and inside well. It is coated with a powder that is slippery and does not allow the bug to crawl out of it. You put the climb up under your bed frame legs. They are cheap and simple, but well worth the investment.