I think the inability to sleep is one of the worst side effects of this surgery (after the initial pain gets better) that no one tells you about. With my first knee I did the rotisserie chicken in bed each night until about week 8. This time I started to begin to get 5-6 hours at a time most nights after about 6 weeks (just last week). Hang in there. I am no longer doing heel slides, just using the stationary bike to get my stretching in. I do it 2-3 times a day for about 5 minutes.