There are few things worse than trying to fall asleep when you’re hot. Who can rest when you're overheated? If you're one of the many who toss and turn come summertime—no matter how cold you try to make your place—you need to rethink your bedding. The alternative is doing nothing and letting even a small amount of sweat make you feel glued to the sheets.

According to Leslie Swanson, a clinical psychologist and associate professor of psychiatry in the Sleep and Circadian Research Laboratory at the University of Michigan, when our environment is hot, it prevents our body temperature from falling as quickly to where it needs to be in order to facilitate quality sleep. The end result? It's harder to fall and stay asleep, so we wake up feeling groggy (and likely a little sweaty). Your first defense is to stay hydrated and avoid late-night workouts that raise your blood pressure and heat you up. She also says that while it's counterintuitive, a warm shower before bed actually triggers physiologic changes that will lower your core temperature and help you conk out. But then your bedroom has to do the rest of the work.

In a well-regarded sleep study, scientists concluded that the ideal sleeping temperature is an environment between 60 and 68 degrees Fahrenheit. When lying in bed trying to snooze, your body temperature decreases to initiate sleep—and the proposed temperatures above can actually help facilitate this. If you have air conditioning, this temperate drop can be accomplished fairly easily (while using a decent amount of energy). On the other hand, these pillows, sheets and accessories will cool you down without raising your utility bills.