If you sit something with bed bugs in it outside would the bed bugs leave
Nope...they'll just multiply. They need to be sprayed with an insecticide.
One common natural remedy people propose for bed bugs is to leave things that are infested outdoors, hoping that either cold weather or the heat will kill them off. This is a remedy that will get you mixed results. For some people, it works very well - which is why people keep telling everyone to use it. Often, however, there will still be some alive even if you've put stuff out in extreme temperatures. Why? Because the temperature isn't evenly distributed, for one. Let's say you put a mattress outside in the winter. Parts of it will get very cold, especially the exterior. But inside, it wouldn't get that cold - and it might not be cold enough to get rid of them. For another, it takes pretty extreme temperatures - either above 120 degrees Fahrenheit or below zero. If you're trying to freeze them out, it takes a week or two for them to die.
