Basic Drying. The heat of a clothes dryer is high enough to kill bedbugs in all stages of their life cycle. Some machines, however, take longer to heat up than others. If your dryer reaches 120 degrees, it can kill bedbugs and their eggs quickly -- but it might take the dryer 10 to 15 minutes to reach that temperature.
Set the hair dryer to the highest heat setting. Bed bugs cannot survive at a temperature greater than 113 degrees Fahrenheit. Turn the dryer on. Begin directing the hot air over target areas for bedbugs. Pay extra attention to mattress seams and other crevices where bedbugs might lay their eggs.
Internet advice recommends adding the bleach to hot water when you do your laundry. Then use high heat in the dryer to dry them. The bleach may kill a bed bug or two, but it's the high temperatures that destroy them. Making a spray of half bleach and half water and using that on your mattress is fatal to bed bugs hiding there.
Bed bugs can be killed by exposure to heat (in a dryer for instance) but they must be exposed to a temperature of at least 130 degrees F. for a minimum of 35 minutes.
Heat is non-toxic, and can kill all bed bug life stages including bed bug eggs. However, heat treatment of any kind (except your home clothes dryer) is still relatively expensive and has no residual (long lasting) activity. The lack of residual activity means that bed bugs can re-infest again the day after treatment.
I've got to be honest with all the readers in here. Its in my honest opinion as CA (commercial applicator) that the heat treatment is a marketing gimmick. Yes will it kill the bed bugs if kept above 139 + degrees for over 2 hours, yes. However those machines cant guarantee to get cubic inch in your hotel room, apt, or home.