Hi there @cattanzer.....I have been stewing about the sleeping issue. I remember some of the things I tried when the immobilizer was removed. I am not 100% sure because I had 4 shoulder surgeries and my memory is not clearly telling me which was which. I am pretty sure I bought a large wedge and slept sitting up with my right surgery arm across my chest. The danger of course when you lie flat or on either side without the wedge is that you tend to curl your head upon your arm when you are sleeping. I actually got very used to the wedge and fell asleep well. There is no room for snuggling and cuddling........as you might have guessed.

Just be careful and make sure your new shoulder is not expected to do any work at all.
May you sleep peacefully and with contentment.
Chris