So iv started today to let my 4 month old baby to nap in his crib! It took 35 mins of gazing at the mobile crying fussing me going in there 4 times to assure him I didn't leave him to give him cuddles and sing to him.. but he finally fell asleep his morning nap 9-10 was easy he hardly cried and I didn't have to go in as much.. maybe I missed my window but I'm just curious how long it takes you Momma's or daddy's to get your little one to take a nap and fall asleep what does your nap time schedule look like? He slept thro the night last night so I think he's ready to move out of napping in his swing and get use to napping in his crib.