mommies , what do you guys suggest about putting a pillow under a 3 week old baby? my sister bought me a boppy for the baby. it's really small. literally like a little bigger than my baby's head. what do you guys think? is it ok to have my baby lay on it so he's not laying flat down? only because he's been throwing up and they suggested for him not to lay flat... last night we had him sleeping on a bouncer type of thing, we had it on the bed so he wouldn't be on the floor.. but doesn't seem like he's liking the idea of sleeping on it today. so i'm having him sleep on his bassinet but i put that boppy underneath his head...