Need ID on sleep syrup from hospital

[Rob77]

Hi Guys, I was in the hospital like 10 yrs ago for a 4 month stay. About a month in I quit sleeping completely and they gave me some sort of syrup. Now this sht was boss it made dreams controllable and made you REALLY comfortable. What I remember is it was a dark purple color, I was administered about 2 oz. through a G tube (same as drinkin it) a special different nurse brought it in, and that's about all I recall unfortunatly.

 Any ideas what that was?

 Just the facts,
Rob