Docpiper2, you are correct and so is AOPA, UNLESS you have accomplished certification through CFI. If that has EVER been the case, you are grounded because the agency can show you have reason to know about 67.313.
However, none of that matters. What counts is that your insuror will pay off when the s_it hits the fan. Though you do indeed possess a medical certificate, it is a nebulous gray zone when due to inattention you land ontop of a busload of nuns.
You really want Zero chance that the insuror says, "no dice, we don't have to defend you, you weren't legal". In reality that chance is small, but it's not zero if you continue to fly.
You need:
Initial sleep study
The Titration of CPAP - and if this occurred in a "split study" on the only night you were in a sleep lab, this will do.
The doc's letter has to say four separate things in plain english:
(1)Appear well rested
(2)No apparent tendancy beyond normal to fall asleep
(3)Compliant with treatment (that's what the printout is for).
(4)No overt right heart failure.
Add the CPAP printout showing more than 75% of nights with 6 hours or more of usage, and you're done.
Once you have these, and a certified return receipt for these (to AAM 331, PO Box 26200, OKC, OK. 73125) you are on adequate grounds to self certify (provided you are NOT a CFI or never have been).
It may have been a while since you saw your AME. If you have a gifted one who cares (most AMEs won't cal lif it hasn't been in the last 3 months since you were seen), give him copies and ask him to call for you about a week after you get your delivery receipt. He can get you the speical issuance on the phone.
If not, once you have all the information and the certified return receipt, you can make a pretty goood case that you were compliant and had grounds to re-self certify, because the list above is exactly what the Federal Air Surgeon requires (read 67.313 on the web) for your situation. I hesitate to say you MUST wait until you hear form FAA, because right now the wait is interminiable/unconscionable...~100 days.
I would say, once you have the items above, and the Certified return reciept, unless you ever held a CFI certificate, you can go fly.