This is my first post so Im sorry if this is basic.
I met this girl through a mutual friend, thought we hit it off and number closed on fb a couple days later. We were supposed to meet up at a bar that we were both going to that night but I fell asleep.

Anyway now I want to ask her on a date. I was just going to text her asking if she wants to get a drink during the week and make a joke about me falling asleep. I want to have a plan though, so what should I do if she gives some excuse about the day when I ask? Should I see if shes free during the weekend or is that bad? Also how long should I wait after the falling asleep night?