Consistent Sleep Duration Night to Night
Keep your sleep duration and bedtime fairly consistent from night to night, rather than swinging widely between short and long nights. The practical goal is steady sleep patterns, such as getting roughly the same number of hours each night, because regularity can matter as much as total sleep for supporting recovery and circadian stability.
“Turns out that for sake of learning new information, limiting the variation in the amount of your sleep is at least as important and perhaps more important than just getting more sleep overall. I find great relief personally in the fact that consistently getting, for me, about 6 hours or 6 and 1/2 hours is going to be more beneficial than constantly striving for eight or nine and finding that some nights I'm getting five and sometimes I'm getting nine and varying around the mean.”