Sleep duration and mortality – Does weekend sleep matter?

National Sleep Foundation guidelines advise that healthy adults need between 7 and 9 hours of sleep per night. A study from Sweden looked into association of weekday and weekend sleep duration with overall mortality. An extensive group of 43,880 participants was followed for 13 years! Sleep duration was self‐reported only through two questions. Interestingly, among individuals below the age of 65 years, reduced weekend sleep was associated with a 52% higher mortality rate but among individuals ≥65 years, no association was observed. Authors also found that if weekend sleep is extended after short weekday sleep, there is no association with mortality. As such, compensatory sleep plays an important role and it is worth to consider lifestyle changes with reflection on your individual needs like activity level and overall health.