I can give u my opinion only on two aspects in your post. First, don't worry about long hh of sleeping and don't compare ur case with anyone else's. You are fasting and your body reacts on it the way it wants to. If you have such an opportunity to sleep that long then it is just BRILLIANT. Plus it was told so many times here that during a fast it is ideal to rest as much as u can even if you don't feel weak. Some ppl are struggling to occupy themselves at least with something during their fasts but in your case days are just passing by so it is just ideal situation:);)
As for ur skin issue.. After my 10 days Water Fast I noticed my skin (all over the body) became tender. Did u mean the same?.. Again - RE-LAX. Everything is GREAT. And sleep the way you want. Plus, lets face it, you don't know HOW you sleep and on which side all those hours. True? True!.. :)
U are doing extremely well, Zoe. Keep it up!;):)))))