Why Sleep Matters More Than the Last Practice

July 5, 2026

I talk to parents who drive their athlete to extra training sessions but let them stay up late on their phone. That order is backwards. Sleep is when the body repairs muscle, consolidates memory, and releases growth hormone. Skipping sleep does not just make your athlete tired. It undoes some of the work from training.

A teenager needs 9 to 10 hours of sleep per night during heavy training periods. Most get 6 to 7. That gap is the difference between an athlete who recovers and one who breaks down. The science is clear. Sleep-deprived athletes have slower reaction times, lower accuracy, and a much higher injury rate.

Set a device curfew. No phones or screens 30 minutes before bed. The blue light suppresses melatonin and makes it harder to fall asleep. Treat sleep like part of the training plan. It is not optional. It is where the gains actually happen.