I'm pretty sure it's 4 months.
It's 5 months (150days) from July 22nd. She has to be at the prison for a month before she can be entered into the 'rehab/education' program which is a 120 day program.
I will be printing this thread out on Sunday to mail to her.
It will be awhile before she can write back, but at least she will be getting our mail.
Thanks for posting, your good wishes will be sent to her.
Love and hugs,