6 month old stopped rolling and I think it might be our crappy sleep culprit?

I might be going out on a limb, but by current 6.5 month old has had crappy sleep for three weeks and I realized today, that he stopped rolling side to side to get to his belly.

He stoped rolling from belly to back WEEKS ago, and he recently stopped rolling from back to belly. And at night, he was rolling on to his belly to sleep.

The last two or three weeks, if he wakes up on his back OR his belly he just gets mad and cries until I get him. Like there’s no more effort to move either direction anymore. He was doing so and was able to settle himself back to sleep. That has gone totally out the window.

So I’m not necessarily worried about the milestone, as much as looking if anyone else’s did something similar? He gets plenty of floor time and is working on getting on his hands and needs, but is not interested in moving side to side anymore.