You don’t want to be uncomfortable and neither does your baby! It’s pretty easy to tell if your baby is uncomfortable or too small for their bassinet. When your baby is too big for their bassinet, they will run into the sides when they turn out. This can cause the entire bassinet to tip over and can seriously injure your baby. If your baby’s feet, head, and hands are bumping into the sides of the bassinet or they are waking up frequently or suddenly, it is a sign they are too big for the bassinet and it’s time to move to a crib.