Sleep study. Not able to sleep
You should have a follow up appointment with the doctor who will diagnose you with sleep apnea or not. and they will tell you the steps you need to take. when i was first dx with apnea i was told to sleep on my side. and that i did not need a cpap. later after another sleep study i was told at my follow up that i would need a cpap. but when i went to get the cpap i was told i needed a really low setting. that is why i haven't been as worried about not having it.
your follow up will explain it all
Good luck!