With wrist-worn gadget, researchers capture real-life sleep for the first time

To measure a person's sleep, researchers have relied on costly and time-consuming approaches that could only be used in a sleep lab. But now researchers have found a way to capture detailed information on human sleep cycles over long periods of time while individuals slumber at home. According to the researchers, it will now be possible to objectively capture the real-life sleep habits and sleep quality of large numbers of people.