What to do if you missed a college interview?

This is no one else's fault but mine and its a very cliche excuse, but I missed the interview simply because I overslept. I set both alarms on both cellphones and neither alarmed (later found out it was because I had both phones on vibrate due to the annoying ringtones I kept hearing all day). Then there was the issue of not getting enough sleep because I was up until 2 am with a crying 7 month old little boy. I can't believe I didn't even hear when my house mates were getting ready for school. Anyways, What I want to know is, what should be my next course of action especially if I already had to reschedule once before? The name of the school is Chamberlain College of Nursing: Atlanta.