“I wake up and by back is sore and painful.” A common problem for people. Here is the simple fix.
Most side sleepers look like this:
By being in the fetal position, the back and neck muscles and spine stay under tension, so you stay stressed. This reduces circulation to the muscles to make them sore/painful.
A simple step to relax the muscles is shifting your top leg behind you. This allows your back to straighten relaxing spine and muscles of the back.
The you can enjoy a restful sleep to feel recharged the next day.?