It is not uncommon for babies to start transitioning away from their bassinets around 3 or 4 months. One good time would be right after they've weaned themselves off of milk-based foods and are ready to use a crib mattress, because these items need more space than most other things in your home can provide. It's never too early (or late)!) to get prepared! Babies may begin preparing by placing one hand over another on top of an object - this could mean goodbye forever...or hello independence! It might happen when eating solids at dinner time if baby has been consuming breastmilk since birth; Mothers often see them making the switch earlier