Anecdotal, but similar—when I used to play in chess tournaments, I had a sense that I performed better and made fewer errors when I had more sleep, to the point of aiming for 9 or so hours of sleep the night before a tournament.
Anecdotal, but similar—when I used to play in chess tournaments, I had a sense that I performed better and made fewer errors when I had more sleep, to the point of aiming for 9 or so hours of sleep the night before a tournament.