This was a life changer for me. I had an AHI of 69. For those not familiar, AHI means Apnea-Hypopnea Index, which is an average count of “events” per hour. An event is either a complete blockage of respiration for 10s or more, or a drop of 30% or more in blood oxygen level.
After I got my CPAP, I went from sleeping 10-12h and not feeling rested ever, a literal zombie, to sleeping 7-8h regularly and feeling good.