If you didn't, you probably shoulda taken some Adderall with that. Generally, trying to trip on that stuff doesn't work well without a stimulant of some sort because it will just knock you out.
I took adderall earlier today (40 mgs) which is the reason why I got the sleeping medicine in the first place... but after almost 2 hours I don't even feel drowsy.
Just don't lose your mind. Gotta be careful with those hallucinogens.
Although, I think it would be wonderful if you got some salvia and smoked a whole bowl full of 100x or something. Waaay more than you should. If I didn't worry about my psychological health, I'd try it, just to see what the heck would happen.