all of a sudden im sleeping normally again, should i be concerned?

been going thru a horrible health scare, so i started to play music quietly and calm.breath/com or whatever the site is and breathe with it. for some reason, that + clutching my blanket tightly made me fall asleep before 12am for the first time.

its been a week and a half now, and ive been consistently falling asleep at 10pm-12am while waking up at 7-9am. in fact, now im getting tired at 2-4pm and can feel myself wanting to nap (i never had this before in years).

in fact, i've never really slept normally for years. i've always tended to fall asleep at 1-3am throughout college (esp in the past 2 years). now im sleeping normally!!! wtf???? is this something i should be concerned by?