I have had them for years, always seems like I get chilled, cover up and that is when they hit, kick the covers off and cool down. A ceiling fan on helps a lot. Husband just covers up. Little Chihuahua get her crate covered with a towel, she freezes if cooler than 70. They are less and less, only lasting a few seconds. I just deal with them. I'm just glad to be 66, hot flashes and all.