For walking, no - it doesn't matter when I do it. Though I would avoid going for more than a light stroll within an hour of bedtime. For resistance training or

For walking, no - it doesn't matter when I do it. Though I would avoid going for more than a light stroll within an hour of bedtime. For resistance training or cycling I'd try to avoid finishing within two hours of bedtime - those two make it harder for me to fall asleep. I have found that a cool or cold shower before bed really helps. If I am warmed up from exercise (or just sitting in a warm room) I find it much harder to go to sleep. But not too cold for too long - that can be stimulating; not what I want!