Day four for me too, and I am also not sleeping well. I seem to be keeping all the water I drink during the day and for the past 2 nights I have been getting up every 2 hours to wee.
I was thinking it had something to do with the salt. Or maybe I am cleansing more at night because I run around like a maniac during the day.
Last time I slept so well, I was looking forward to being rexaxed like that again. The SWF (Salt-Water-Flush) also makes me feel like I have to lie down, so I am losing an hour every morning. I am usually a morning person. I get all my energy back around midday and I become really energised in the afternoon - which is a first for me.
Unfortunately no suggestions - just keep strong and think of the long term benifits.