It's funny ready the various responses. As the trend goes, I really believe it depends on where you live and what is the normal temp for the area. If you live in TX your normal temp is higher than it is in Wis. My son lives in AZ, Tucson, and we visited in Feb. It was in the low 80's and do you think that this old Wis couple could find a fan for sale? The answer is NO! Now we came from mid 20's to 80's for outside temps and it was crazy hot for me.
So this Wis fella likes it about 68 in the day and 65 at night. We sleep with two fans running in the bedroom. A ceiling fan and a bedside table top year round. I am the hot one and sleep with just a sheet and my wife has a sheet, a cotton blanket and a heavy quilt on. About half way through the night I grab the cotton blanket too as I cool down. We are on different planets as far as temps goes.
In the summer the house is set about 76 but I still like it about 74 at night.
Nice thread on a quilting forum, but we are all social beings and it's all fun to share.