Heey Sueueky, just a word to tell you best of luck to you, I cant think of anything I do the night before any surgeries, I read alot, watch tv to much, and do my best to sleep.
Heres the thing, even if you dont get much sleep before your surgery, you will sleep the day of and off and on the days after.
Sending many prayers your way, please let all know how you are doing. Bless you and keep you safe.