Im 7 weeks post knee revision surgery. as far as that feeling, my other knee felt like it just never fit with the replacement. as it turned out, 21/2 years later, i finally got a revision. I was not comfortable during the day either. AS far as night goes, what i did when i first got my knee done i slept in a recliner so i couldn't move. I put bolsters around every part of my body. I hope you feel better.