Night waking

I’m looking for any tips! My handsome little boy is starting himself awake multiple times a night. He moves around so much in his sleep that I figured out when he’s waking himself up it’s because he’s hitting his head either on the side of the crib or his little fish tv.

I have no clue how to help him so he stops hitting his head and waking up, sometimes hitting his head so hard he’s inconsolable for 5 min. This didn’t happen with my daughter so I’m at a loss for what to do

Please help!