Looking to couch surf Aug 31st in Boston

Hey everyone.  My name is Nick, I'm 28, and I am entering a masters program at BU this fall.  I am arriving in Boston on Aug 31st and while I have an apartment, the move in date is not until September 1st.  I need a place to stay only for the night.  If anybody can offer I would be very grateful.  Send me a message on here to contact me.  Thanks
Nick