Hi, when I was in the hospital in October I had morphine at night time and it gave me very strange "dreams". I use quotes because I was not fully asleep, rather halfway awake (I had difficulty sleeping with the morphine; I did not sleep soundly).
I had to keep opening my eyes just to check that there weren't people or things under and around my bed (I sensed that there were). I also had to keep feeling my face and opening my eyes to make sure that something - a blanket, spiderweb or something- wasn't covering my face since it felt like something was covering my head.
Sounds, images, and colors were all really intense. I imagined bears knocking over trash cans, people playing basketball down the hospital hall, etc. even though I was aware enuogh to know that it wasn't real.
My experience is that morphine can cause some pretty real- feeling hallicinations.
I don't know the dosage I was on. I was hospitalized for 11 days to remove 1/2 my tongue, and lymph nodes on one side of my neck. I know some of the images came from mechanical sounds like the constant blowing of oxygen because I had a trachetomy and pumps on the leg massage/pressure machine.
Other pain meds I think I had that worked better were Adovan (spelling?) (I slept very well with that) and lortab.
good luck!
michelle