You are not supposed to use this in the crib/bassinet once your baby can turn/roll over on his own. So as far as safety goes for sleeping -no, but your baby should fit if it’s for witnessed sleep/play. The leg support adjust and can go all the way to the bottom.
Very disappointed it was stained. Baby didn’t like it.
Your baby Probably won’t like it.
Plus I wrote to the company, never got an answer back about the fact that it was stained.