Are you sure you want to push the time up? In all the different ways to do a liverflush I have read it is important to stick to the times given. I wasn't quite ready to go to sleep yet either, but just laid there and relaxed and was able to go to sleep after an hour or so anyway. I was too anxious to try to feel what was going on in my liver with all that oil anyway.
I am doing my 3rd in 2 weeks; I look forward to the results.