Dependable, Long Term, Overnight Babysitter Needed For 3 Nights A Week For A 10 Year Old Boy

I'm looking for an overnight nanny that could watch my 10yo son from 6:15pm-8/8:15 a.m. I am a single mom that is an RN, and I work in the hospital overnight. I work 3 shifts a week, schedule varies each week. NOT A SET SCHEDULE. I charge $100 a night and I can't go beyond that as it's just my income contributing. My son goes to bed at 8:30p so watch time is not long and he sleeps till 7:30/8 a.m. You can sleep when he does. He's used to having a nanny watching him overnight and is familiar with rules and bedtime. I will have him fed dinner and showered before you get here so all I need is homework help and taking him to sport practice if needed. He loves to play outside and go to parks/be active and I am more than happy if you want to take him to go do stuff. He is a very kind; sweet boy that will make you smile everyday.