Just received an email from my mom:

Melissa "awoke" this morning around 1:30 and is now communicating. An MRI and blood tests were done and we are awaiting results but she seems to quickly be coming around. Thomas (my stepfather) spoke briefly with her and Karen said that she is doing very well, though still exhausted. Thank you for your prayers.
Thank you again so much for the prayers. I'm hoping her recovery will continue in a positive way and they can find out what happened to cause this.