Answer: From a safety perspective, no. The SIDS safe sleeping guidelines are very clear about not using pillow for babies because of the suffocation risk. If your baby is developing a flat head he needs (perhaps) more tummy time and opportunity to lie without pressure on the back of his head. Speak with your child health nurse about ways to encourage your baby to lie more on his tummy or even his side when he's awake. Supervised tummy time during wakeful times will help. Cheers Jane