Refrigerated Bedsheets

My pal Jenny told me that when she lived in the deep South she had no air-conditioning, so she and everyone she knew had another way to cool off at night. She would first soak and wring out her bedsheets and then put them in the freezer. Then she would take a cold shower, make her bed with her ice-cold sheets, turn on the fan, climb in, and hope she'd fall asleep before the sheets warmed up and dried.