Isaiah will be 9 weeks old tomorrow. He sleeps on his own at night and doesn't need to be held to fall back asleep after his late night/early morning feeding. The problem is during the day he will not nap unless I'm holding him. He falls asleep on my chest but as soon as I lay him down he wakes up, or if he does stay asleep it's only for five or ten minutes. I swaddle him and if he is not swaddled I do the arm test to see if he is really asleep. He's only been doing this the past two or three weeks.

Is there something I'm doing wrong? Is this just a phase?