I had a nap earlier this evening and did not get up until late this morning because of hurting my knee yesterday but I will be going off to bed shortly.
Hope your knees will be better soon! I did the same thing the other night (staying up till 4am) talking to a FReeper! It was fun and I lost track of time. Man, I was just wiped out all the next day! Thank goodness I was off from work that day or I wouldn't have been able to function! LOL!