Help!

Kaiti

My 3 month old has the worst napping habits. (My fault) He’s on a schedule eats,plays,& sleeps & he only naps in my arms! I put him in his crib for naps because i want to transition him soon & he only lasts for 30 minutes. I put him down drowsy or fully asleep & he never lasts. He does GREAT at night for us but I’m really struggling with his naps. Any suggestions?