I had a rough go with "normal" sleep during the first week. Then some sort of switch flipped and my sleep has been fantastic. I get sleepy at my old normal time and go right through the night and waking up well rested with no hangover is something else. My snoring is greatly reduced (wife welcomes and approves this! lol)
I read and watched dumb movies late at night while struggling. Helped pass the time before things got normal again.
Congrats on 4 days!