Their rate of improvement over a 5-6 week period increased, but the article omits their baseline rate of improvement (presumably they're still-developing athlet

Their rate of improvement over a 5-6 week period increased, but the article omits their baseline rate of improvement (presumably they're still-developing athletes). I didn't check if the actual study addresses this, and in any case, the improvements sound larger than usual. Of course, it's also nearly impossible to create a placebo 10-hours-sleep intervention :)