A year ago I started using a cpap machine after being diagnosed with severe sleep apnea. I was waking up 72 times a night and stopped breathing 120 times a night. My memory and thought process got so bad when the food in the fridge was freezing, I was accidentally turning the temperature down, not up to prevent it. Before my sleep apnea I had an excellent memory. I could get high B’s and A’s on my exams with little to no studying. I want to be able to do that again. I am scared my memory will never be the way it used to. Does it take longer than a year for it to come back completely?