The website naplab did a study on every U.S. state and how much sleep they get on average. The study took a percentage of the number of people who get, on average, seven hours of sleep or more per night. North Dakota came in first with 71.6% of sleepers getting seven hours of sleep or more. In last place was Hawaii with 56.1% of sleepers getting seven hours or more. Do you get more than seven hours of sleep a night?