Is It Better To Sleep With Fresh Air?
(World News USA)

Do you sleep more soundly when you leave your windows open during cooler weather? It isn`t your imagination-research shows that people may get better-quality sleep when fresh air circulates in the bedroom. A recent study published in the journal Indoor Air found that when people slept in rooms with ventilation-either with an open window or open door-compared to an unventilated room, their sleep improved, they woke up fewer times per night, and carbon dioxide levels in the room were lower. As carbon dioxide levels decreased, people slept more soundly and their awakenings decreased. `Carbon dioxide levels are taken as a proxy of how good the air quality is,` says study author Asit Kumar...