Ultraviolet light doesn't kill bed bugs and neither does ordinary light. Bed bugs prefer to stay hidden during the daylight hours, but will come out to feed at any time and even if a light is on in the room.From bedbug central (on which the video *gasp* has me commenting/claiming it's... er.. false):
By following the techniques explained in this video, you provide yourself with the best opportunity to use the sun’s energy to eliminate bed bugs from items.
Kids, this is called marketing. It's a science of persuasion. But don't worry, it's intended to help those who "can't afford to hire a knowledgeable professional!
Finally there is the forum!
Gamma ray radiation can be used to successfully eradicate viable bed bugs from many household items like mattresses, clothing, documents or furnishings.Naturally, I believe the sun provides this type of energy/radiation light as well. But Wikipedia has a source saying " Although the Sun produces Gamma rays as a result of the nuclear fusion process, these super high energy photons are converted to lower energy photons before they reach the Sun's surface and are emitted out into space." So this is where my experiment goes back to the method. My method of pulling ideas out of nowhere has turned 3 opinions into 4. As a result, for the experiment to continue, it must be tested whether the Sun does or does not emit gamma rays, or if what the the Sun "does, however emit" can kill bedbugs.