I have to say I am very glad that I purchased hot flash pajamas from wildbleu. My wife has suffered for years with night sweats. She would wake up in the middle of the night and, in turn, wake me up fanning herself and complaining about how hot she was. I decided to do something about it and help her the best way I could. I started to research hot flashes and the causes and what products could help or at least make the recipient of the hot flashes more comfortable. I found online and proceeded to order a pair of their pajamas. I am so glad I did. My wife sleeps more comfortably and the pajamas make it so that the heat is transferred away from her body. I don’t understand the technology but I am sure glad that it exists. Thank you wild bleu :) James