Stick your bedlinen in the freezer

 

Cannot sleep in the heat? Fold your bed sheets and pillow cases, put them in resealable plastic bags and stick them in the freezer for a few hours. Take them out when it is bedtime and make the bed. Since this one requires a bit more effort, perhaps try it when it’s time to change the bedsheets, which should occur every one to two weeks.

How effective? The cooling effect did not last through the night, but the sheets stayed cold enough for me to nod off.