Daytime Naps

Hello!

I’m looking for some advice/tips for my 3.5 month old and his daytime naps.

At night, my son sleeps great in his crib for long durations of time. But during the day, it’s a different story. He’ll only sleep for 30 min at a time. If I’m holding him or if he’s in his lounger, he’ll sleep longer, up to 1.5-2 hours. I’ve read so many things online and have tried keeping him in