When sky-high temperatures don’t abate at night, the heat can interfere with sleep. One quick remedy is to bunch up your pillow, put it in a plastic bag, and stick it in the freezer for 10 minutes. If your freezer’s already full of ice cream, save space by freezing just your pillowcase. The quick freeze creates a temporary cooling effect that may help you doze off. For back up, keep an extra pillowcase in the freezer so you can make a quick switch if you wake up in the middle of the sweltering night. Another pillow pointer: Consider swapping your foam version for one filled with buckwheat hulls. The buckwheat stuffing allows air to circulate throughout the pillow, which means it holds less body heat than foam pillows, keeping you cooler.