And if you're worried about your baby getting flat spots on their head, tummy time reduces the chances of flat spots developing. (safesleepky.com)
To avoid flat spots on the head, let baby have tummy time during play and awake or alert times. (thebabycorner.com)
So if he discovers flat spots on your head, he may recommend you to change the head's position when the baby is asleep while keeping the baby on a best crib mattress. (momdiscuss.com)