I recently got a c-pap machine and it changed my life, and took twenty years off my life.  yes twenty.

I resisted for years, but was always tired and would sleep 10-12 hours, work 4 and be so tired I struggled to keep my eyelids from closing.  drove onto the shoulder of the road a few times, so I rented out all the farms more than 10 miles away for the last two years.

We have a $20 pulse oximeter from walmart that sticks on your finger and tells what your blood oxygen levels are.  Mine were always 93% when I was awake, while the rest of the family was 98-99%.

I put it on this august and fell asleep with it on and when I woke up it read 69%!  Thats brain damage levels (which explains alot).  I called the doctor and requested a sleep study.  A kit was mailed to me and i wore a tube under my nose and a belt around my chest  for a night.  my oxygen fell to 59% that night and said i was stopping breathing an incredible number of times.

I got a whisper quiet resmed c-pap that covers my nose only.  It starts out on low pressure until I fall asleep then senses how much pressure I need and adjusts as Im sleeping.   Its humidified air, and clears out your airways like taking a shower in the morning. I can sleep on my back again, don't have to get up in the middle of the night anymore, sleep 5 hours on average and no more naps.

its incredible.  It has increased my lung capacity so now even when im awake not on c-pap,  the oximeter reads 98%.  

I get twice as much done in a day as I did before.

ps, Im 51, I should have done this at 45, but i might not have been as happy because the machines have improved substantially from then until now.