Sleep Habits study from NHANES - 9004 adults >20 yrs (2017-2020) finds mean sleep duration 7.6 hrs on workdays & 8.2 hrs on free days; 23% slept <7 hrs & 25% went to bed > midnight. Nearly 30% had trouble sleeping (daytime sleepiness 27%) https://t.co/Uc7nL4q3fm https://t.co/qvCwqbsez1