The world’s largest sleep study results suggest those who sleep an average 7 to 8 hours a night perform better cognitively than those who sleep less, or more. How much do you get? The world's largest sleep study results suggest those who sleep an average 7 to 8 hours a night perform better cognitively than those who sleep less, or more. How much do you get?Less than 7 hours (0.00%)Between 7 and 8 hours (0.00%)More than 8 hours (0.00%)Never enough (0.00%)Previous Polls
