Ok, poor Eli and his momma for not knowing this before hand. When you put your baby to sleep, alternate which side of their head they rest on, and alternate which direction they are laying in the crib. This is to help prevent them from developing too much of a flat area or areas on their head. Eli's was bad, still slightly flat if you know what to look for. He preferred to lay on one side all the time, and I did not think anything of it, and he developed a flat head, as our doctor would later point out. Also, if they are laying only on one side when they sleep, they often don't stretch the muscles in their neck equally on each side, and this compounds them wanting to lay on one side. Just believe me, alternate which side they lay on.