No but in our last house every bed had them on as the house could get quite cold in the winter. Also I worked nights for a number of years and climbing into a lovely toastie hot bed helped me to fall asleep quicker during the day.
I DO I DO- a duel one that just "hots" up my side before I get into bed-my husband states "don't like electric blankets" funny he is always on my side of the bed on a cold night.