If you struggle to get a good night’s sleep, think about opening your bedroom window or door. It helps the air circulate at night, leading to better quality sleep, a study found. Sleepers were less likely to toss and turn and wake up, researchers said. Scientists believe that poor ventilation leads to a build-up of carbon dioxide in the bedroom as a result of respiration.
To test the effect of keeping a window open, researchers tracked the sleep of 17 healthy students. They slept with windows or doors either open or shut, and the room temperature was monitored.