Rolling over in bed failure

 From lying on my back to trying to roll over to sleep on my good side(right). If I just roll over then my left arm falls behind my back with zero chance of being able to lift it onto my side. So I have to grab my left arm with my right hand and place it in my lap and then roll to my right side. Which then means I have to dig my right arm out from underneath to pull the sheets and blankets over my back. Zero training on that in the hospital.