Can More Sleep Improve Shooting? A Sleep Extension Study in College Basketball

When a player keeps missing shots, the usual answer is more reps. But has anyone checked how long they slept last night? In a study of Stanford's men's basketball team, extending sleep for several weeks increased sleep by about 111 minutes a night on average, made sprint times faster, and raised free-throw and three-point shooting accuracy by roughly 9% each. The catch: it involved 11 players from one team, with no control group.

What the study looked at

Mah and colleagues ran an intervention study to see how extending sleep over multiple weeks affects sport-specific performance, reaction time, mood and daytime sleepiness.

Participants: 11 healthy players from the Stanford University men's varsity basketball team (mean age 19.4)
Design: a 2–4 week baseline on their habitual sleep schedule, followed by a 5–7 week sleep extension period
Sleep extension: players slept as much as possible, with a minimum goal of 10 hours in bed each night
Measures: basketball-specific tests after every practice (a timed sprint and shooting accuracy), plus reaction time, daytime sleepiness and mood

Key findings

Total nightly sleep time increased by 110.9 minutes on average compared with baseline
The timed sprint improved from 16.2 to 15.5 seconds
Free-throw percentage rose by 9% and three-point percentage by 9.2%
Reaction time and daytime sleepiness scores improved
Mood improved, with higher vigor and lower fatigue
Players also reported better overall physical and mental well-being during practices and games

The authors concluded that optimal sleep is likely beneficial in reaching peak athletic performance.

How to read this in practice

The limitations matter as much as the results here.

Only 11 players from one team took part, and there was no control group that kept sleeping as usual
The study ran during the season, so improvements from continued training can't be separated from the effect of sleep
We don't know how well the results apply to female athletes, high-school players or other sports

So this study doesn't show that extending sleep will raise shooting accuracy by 9%. It does give coaches a good reason to check whether athletes are sleeping enough before adding more training. Ten hours in bed every night won't be realistic for many school athletes, but logging sleep duration and sleepiness every day — and comparing them with performance — is an easy place to start.

Using ATHCON

With ATHCON, athletes enter their condition on their phones every morning (no app install needed). Items such as sleep and fatigue are automatically flagged in four levels — excellent, normal, caution and warning — based on how far they deviate from each athlete's own baseline over the last 28 days. That makes it easier to spot athletes who have been short on sleep before practice starts.

Takeaways

When 11 college basketball players extended their sleep, nightly sleep rose by about 111 minutes, and sprint times, shooting accuracy, reaction time and mood improved
It was a single-team study with no control group, so in-season training gains can't be ruled out
Before adding training volume, check sleep duration and sleepiness every day