Scientists have identified a non-obvious factor that reduces productivity.
If the bedroom is warmer than a certain person usually is, then the next morning they are less collected and efficient. A similar pattern was discovered by a group of researchers, which included experts from the universities of Hildesheim and Graz.
If the bedroom was one degree warmer than a particular participant was used to, the device's nighttime rest score dropped by an average of about 0.5 points out of a possible 100. In addition, such nights were characterized by increased sleep anxiety and a shortened REM stage.