The prep wasn't the greatest but I got lucky and got Halflyltey.....it has pills and smaller amount to drink.
The twilight sleep didn't knock me out, but I didn't feel anything except for the forced air, and that just felt like a bad case of cramps. Other than that, felt nothing and it was over quickly.
I did have problems that night though, they had me on two meds and they made me feel like I wanted to throw up in the evening thru the am, but if you drink warm liquids this will calm your stomach down
Hope