Sleep Time and Its Relationship to Waking Activities

Participants: Data were pooled from the 2003, 2004, and 2005 ATUS databases involving N=47,731 respondents older than 14 years of age.
Interventions: N/A
Results: Adjusted multiple linear regression models showed that the largest reciprocal relationship to sleep was found for work time, followed
by travel time, which included commute time. Only shorter than average sleepers (<7.5 h) spent more time socializing, relaxing, and engaging
in leisure activities, while both short (<5.5 h) and long sleepers (≥8.5 h) watched more TV than the average sleeper. The extent to which sleep
time was exchanged for waking activities was also shown to depend on age and gender. Sleep time was minimal while work time was maximal
in the age group 45-54 yr, and sleep time increased both with lower and higher age.


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