He's been up all day only slept two 30 minute naps since he woke up at 8 am and it's now past 4 pm. As soon as my mom comes in the room and bounces him for a few seconds he is out. I tried the swing, bouncing, walking him, white noise etc. I looked like I was exaggerating lol. Does this happen to anyone else?

& Yes, I let him nap with a blanket in the day when I'm watching him. At night is a sleep sack.