Thumb sucker

Tad randomly started sucking his thumb when he was 3 months old. He's never taken a pacifier and luckily for us he only sucks his thumb when he's tired or just getting up from a nap. Lately he's started sucking it whenever he finds his blanket. I had laundry sitting in the front room and he decided to pull things out. When he got to his blanket (or bib made out of the same material) he'd put his thumb in his mouth and put his head down on the blanket. It's so nice that he tells us when he's ready for a nap!
The next day in his adventures around the kitchen (we joke that he has 4-wheel drive because he can find a way over / around anything), he found the little basket under his highchair where we keep his bibs, when he got to a cloth bib he put his thumb in his mouth and put his head down. (Thumb in, fingers straight out.)

He is a crazy kid! He's starting to understand "no" and often shakes his head at us. Digging in the laundry basket I asked him if he could find his blanket and he shook his head at me. Sometimes I wonder if he's going to make himself dizzy, but he just thinks he's funny.