I've never done much exercising before bedtime. Here are a few articles I found on the web. They are generally positive about exercise before bedtime, but acknowledge that there are people that may have different experiences.
...Shawn Youngstedt, a researcher in the department of exercise science at the Arnold School of Public Health at the University of South Carolina, who has studied the question ... says it's a common assumption that working out too close to bedtime impairs sleep, but that the evidence suggests otherwise.
In one study that Youngstedt conducted, men who exercised as late as half an hour before bedtime experienced an elevation in body temperature but they had no trouble going to sleep. Youngstedt says the hike in body temperature may actually help because the area of the brain involved in lowering body temperature also is involved in promoting sleep.
But another study by Dr. Anne McTiernan of the Fred Hutchinson Cancer Research Center in Seattle found that women who exercised in the mornings got a better night's sleep than those who worked out in the evenings.
[snip]
But he worries that the widespread belief that evening exercise is bad for sleep could be an "unnecessary barrier to exercise." For many busy people, the after-dinner hours may be the only time they can squeeze in fitness. "It's really the most practical time for many people to exercise," he says.
Youngstedt himself often exercises in the evenings. And, he says, "I sleep fine."
I've never done much exercising before bedtime. Here are a few articles I found on the web. They are generally positive about exercise before bedtime, but acknowledge that there are people that may have different experiences.