Exam day after molly

My gf has an exam the day after we plan on going to a concert this weekend. We want to time the peak at 7:30pm-ish, got a hotel 5 min walk away. Drive home is hour and a half (I’m driving) and she’s gotta be in class at 10am. She has told me this exam is pretty easy and she’s not worried about it ”first week of class easy content”

She’s taken molly before like 6 years ago. We tried this exact “batch” 3 months ago with some friends but we took to little to feel anything (finger dip method, we are properly dosing it this time) but all our friends had a good time and have had this same dealer for a long time apparently.

Any advice/would you try to make this happen. How long after are you able to sleep? Thanks for any advice!