I found a video of another baby doing this on YouTube as an example (https://youtu.be/cHDI4Pz6_Cg) ... but I'm not able to find any information on what it means. It's driving me insane! It's really loud to have him next to me in his crib doing that all night (thunk thunk THUNK 80x straight). I'm also concerned because my husband rocks back and forth in his sleep to his day, which was always thought by his therapists to be related to his ADHD (his brain telling him to let out some extra energy). The tiny bit of info I did find online, said that children who kick a lot in their sleep often have a family history of ADD (this was about toddlers though).

Anybody else have a leg-slammer? Have you read anything about it? Is this normal?