Anyone know of a sleep study out there for endurance athletes. I am curious about the amount of time endurance athletes tend to sleep. All of the studies I have found tend to be about sleep deprivation and its negative impact on athletic performance over time or sleep deprivation the night before a major competition.

I have found some anecdotal articles but nothing scientific. Any suggestions? I can post results I find. I have also emailed some of the endurance coaches in my area along with my old psych adviser from college (helpful when you work at the same college you graduated from).

By endurance ... what do you mean?

What exactly is the information that you're looking for?

If you're looking for sleep pattern information to make the most of the short naps you take on a 1200K randonnee, look up Sleep Cycle or REM Sleep Cycle.

Well this was nothing really important more so just curiosity. I have studied sleep cycles (only a BS in psych, nothing special) and understand how that can help with optimizing sleep. I was looking much simpler and bigger picture, essentially how much sleep is needed for the body to properly recover. I know my own body, I honestly need about 9hrs of sleep to feel fresh throughout my day and still have a highly effective workout without feeling completely drained. Im a lowly cat3 cyclist. I have found some pretty cool studies on how the body recovers during sleep in this search though.

Just really curious if there was a correlation (loosely defined) between the amount someone is active and the amount they sleep. One would think yes, just was curious if there were any studies on anything similar to this.

I wrote my master's thesis on circadian rhythms and how it effects performance. I cited a few studies that may relate to the info you're looking for. I can email you my list of references if you want to look them up.