I think you should be..when I went to have my strap off I asked the nurse how long I had to sleep sitting up.. all she said was how ever you feel comfortable!!! Xx
I imagine if it feels comfortable, then it should be okay. People seem to vary. I’m 7 weeks PO and have just started being able to go on my side without it feeling uncomfortable and even a little painful. Lovely being able to again 🙂