My friend wants to move in with me...

So my best friend wants to move in with me and I have no beds for her seeing I'm still living with my mom and I do plain to move out when Im 18 but we will still be in high school for 2 more years seeing how we are going to be in the 11th grade at the time. but I dont know what to do her parents are very controling and wants to control her for the rest of her life and she tells me this and I just fell so sorry for her. What am I to do????

Thanks Angel, I really appreceat this.