I asked my doctor for a sleep test but he said that sleep tests are usually used if you sleep too little and not too much. To check for sleep apnea and stuff like that.

I don't wake up in the middle of the night and I sleep 12 hours.

I realized that the Vyvanse lasts around 9-10 hours and I took it at 8am two days ago and at 6am, my focus was dead and spread out.

I usually didn't notice the Vyvanse wearing off because I usually wake up at 12pm and go to bed at 12am.