This was a difficult night for all of us. It is very important to limit his activity after this surgery for many weeks and especially so immediately after. We bought a crate to keep him in over night. We hoped that he would be drugged up enough to sleep. That did not happen. We ended up taking shifts so that we could get some sleep. He cried almost all night long. In talking to our Vet. it's not pain it's just basic unhappiness. He's uncomfortable, he can't move around, he's cooped up, etc.
Here is a picture of Walter's "Magic Carpet Ride" out back to attempt to go to the bathroom right after we got home. No joy...

By about 2am though he was good enough so that I could take him outside by using a towel as a sling to support his back end. We did that again this morning and after some food and water he felt better. We set up a small pen for him and that seems to have helped a LOT. He can move around some and he can see what is going on around him.

Again using the shift system we were able to get in some exercise and get some errands taken care of. While Kitty was out running errands I took him out from for a bathroom break. He did his business and then we took a few more steps out and he decided to lay down in the front yard. I figured what the heck, I might as well let him see the outside world for a while so we hung out and watched the world go by.

I just hope he sleeps well tonight...