Is Morning or Evening Exercise Better for Sleep?

Neither has a clear edge yet. A small Dutch trial found no clear difference in insomnia severity between morning and evening activity.

What did researchers test?

Published October 23, 2026, the randomized crossover trial analyzed sleep data from 31 adults aged 60–80 with insomnia symptoms. Each tried 14 days of coached activity at 10–11 a.m. and 14 days at 7:30–8:30 p.m.

What changed?

The difference in insomnia scores was 0.55 points, with uncertainty spanning no effect. Morning activity shifted the midpoint of sleep about 19 minutes earlier, but did not clearly improve reported sleep quality.

What does that mean for your week?

This short study does not prove the schedules are equivalent, or tell us what works best for adults in their 30s–50s. It offers no strong reason to rearrange work or family life around a supposedly perfect exercise hour.

Choose a manageable time to move, and notice how you sleep. Persistent insomnia deserves professional help.

Source: Albalak et al., Sleep Medicine (2026).