Rocking baby to sleep for naps?

Our LO is 7.5 months and at bed time, he puts himself to sleep and doesn’t need rocked or any sleep props.

I’m curious when to stop sleep props for naps. He just needs rocked to sleep for naps, but I’d like to get away from it. I’d like to move away from rocking him to sleep because his crib is so low and it hurts trying to get him in without waking him. My mom looks after him during the day while I’m at work and I know it’s even harder for her to get him in.

Any suggestions on where to start?

Also, we lowered his crib because he was already pulling himself up and trying to climb out 🤦🏻‍♀️