What the evidence shows
Adolescent athletes sleeping fewer than 8 hours per night have been shown to carry substantially higher injury rates than those sleeping more — one well-known study of high-school athletes found roughly a 1.7x increase. In collegiate basketball players, extending sleep toward 10 hours improved sprint times, free-throw and three-point accuracy, reaction time and mood.
Sleep is when growth hormone release peaks, motor skills learned that day are consolidated, and glycogen and tissue repair take place. No supplement or recovery gadget substitutes for it.
In-season sleep structure
- Target 8-10 hours in bed for athletes aged 13-22. Anchor a fixed wake time first — it stabilizes everything else.
- Keep bedtime and wake time within about 60 minutes on weekends. Large swings create 'social jet lag' and Monday practices suffer.
- Bank sleep before heavy weeks and travel rather than trying to repay a deficit afterward.
- Nap 20-30 minutes early afternoon after morning sessions. Keep naps before 3 p.m. and under 30 minutes so night sleep is not disturbed.
The last 90 minutes
- Dim lights and get off bright screens; screen light in the evening delays melatonin release and pushes sleep later.
- No caffeine within 6-8 hours of bed — caffeine's half-life is roughly 5-6 hours, so a 4 p.m. energy drink is still working at 10 p.m.
- Cool, dark, quiet room (about 65-68°F / 18-20°C).
- Finish the last real meal 2-3 hours before bed; a small protein-containing snack is fine if training ran late.
- Write tomorrow's plan down. Athletes lose sleep to unfinished thinking more than to physical soreness.
