My son is an awesome sleeper. Just lay him in his bed and he’s out. Will sleep 12-14 hours every night.

But I cannot for the life of me get him to nap anywhere but a swing or his seat if we’re in the car (and it’s a fight). He will nap in a pack n play when my mom keeps him. He literally just falls asleep on the couch watching tv at the sitter. I have no idea what to do. I’ve blacked out his room with curtains but if I put him in his bed (doing the same night time routine) he will just sit in there for hours. Today he sat in his bed just talking to himself for 1.5hours. I can put him in the swing and hes out in 5 min for 2 hours. He won’t even let me rock him to sleep, he just climbs down and goes running again. He’s getting to the age where he can’t nap in the swing anymore and I don’t know what to do.