FMCSA: Daytime sleep worst of three options for drivers

According to a study commissioned by the Federal Motor Carrier Safety Administration, a consolidated day time sleeping schedule is the worst for driver health and safe operation. 

Sleeping at night was the best for driver alertness and overall sleep time, followed by a split sleep schedule. Participants in the study who slept during a consolidated period during the day got nearly two fewer hours of sleep per day than those who slept at night and about an hour less sleep than those who split sleep. 

For more, see CCJ sister site Overdrive‘s report.