The so-called Egyptian method promises to keep you cool on hot summer nights. Wet a sheet or large bath towel with cool water and wring or run it through your washer’s spin cycle until it's damp but not dripping. This will be your new beat-the-heat blanket. Keep a spray bottle filled with water and a small amount of rubbing alcohol at your bedside: If you wake up warm, give the sheet an additional spritz. Another idea in the same vein is to wet and wring out a sheet, then hang it in front of the open window nearest your bed to make any breeze even more delightful.