FYI, I've hunted Colorado since 1992, I always had trouble sleeping. In 2016, I didn't get a wink of sleep the whole 6 days I was there, I was exhausted, luckily, I shot my bull on the second night. Same thing happened in 2017 and 2018. I kept going to my GP and getting meds for altitude sickness. In 2020 I had to go to see a Rutgers, NJ Occupational Health Specials doctor because I was having some throat issues and I was a first responder during 911. While I've always had trouble sleeping, it was getting worse, when I saw the doctor she said to me "you look tired". When I explained my sleeping issues, she sent me for a sleep test and I failed badly, I have sleep apnea.
Just be careful, I use a CPAP now and all is good, I don't know if they make a battery operated one for camping. I'll see this year if the CPAP helps and will let you know. Be safe out there.
