hon, don't wait to get them to demonstrate how to move. If it hurts, ask them to show you to make sure you're doing it right.

A bed stick is fine. We use those for certain circumstances. In fact, you can often hire them from the hospital to take home for a short period. It just slides under your mattress.

You could also try taking some pressure off your stomach muscles when you're sleeping by elevating your legs. Something as simple as a blanket or towel rolled up under your knees. A towel can also be used hooked under your feet (and held by you) to swing your legs up onto the bed. But make sure someone demonstrates that to you.