Good to hear! That is reassuring.
Most parents don't really understand what we are dealing with since their kids sleep much longer (2,3 hours more). This was even more extreme when he was little. When we told people that he wasn't sleeping at daytime they had this strange look as in "that is not possible".
However he learned walking and talking pretty early so he used his extra time it seems ;)
While it is a challenge I always remind myself how lucky I am to have two healthy kids. Sounds like a trope but it really is true.