As bb O-Rep, I traveled with the team and can attest to the exhaustion, as well as respect for the books, notes and problem sets that came out on the long bus rides or in hotel rooms. In my case, it was get off the bus at 1 AM, walk to my quarters on Worden Field, and be back in Bancroft by 5:45 because of a conduct adjudication being squeezed in, meeting with Batt Commander, grading Ethics papers to hand back at 3rd period, and catching up with what went on during 2-3 days on the road before 7:30 daily meeting with DepDant and other BattOs. In general, trying to be even-keeled and competent while my eyelids craved being glued together. Of course, the military trains you to function despite feeling like crap, and I was known to take a combat nap on my gym towel with my office door locked for 15 minutes. Since I always posted my handwritten schedule outside my door on a small whiteboard with a dry-erase pen, the mids got a kick out of seeing that. Commonly called a nooner, JORP, SORP, FORP or GORP... (Junior Officer Rest Period, Senior Officer Rest Period...)
Many mids, including those recruited for NCAA sports, choose to drop their sport and sample club or intramurals, to give better balance and flexibility to their lives. They weigh the pros and cons and make an adult decision. The coaches are used to it.
One of the more interesting examples I watched was a USNA sponsor daughter, a volleyball recruit, who just got burned out after two years as a regular player then starter. As a History major who wanted to go subs, she knew she needed to really ace her STEM courses. After one semester off from her sport, she tried out as a walk-on for women's varsity track, and became a hurdler, making it to the traveling team and contributing for her last 3 semesters. She had been one of those all-around HS athletes. She confessed she missed the hard practices and challenge of Div I competition, saying she actually functioned better with a demanding regimen. No surprise, she is doing very well in her sub career after performing near the top of her class throughout the pipeline. She laughed and said she probably would have done a bit better there, but she decided to join a Tri Club and take up a new sport during her free time. I fully expect to see her on American Ninja Warrior one day.