Baby rubs his eyes all day?

Randi • In love with my best friend. ❤ 5/26/18 👰🤵 Mama to the perfect baby boy born 11/14/19👶💙

My son generally sleeps 10-12 hours at night (not straight, but overall) and takes 3 45-minute naps during the day. There's no way I can get him to sleep anymore than he does. He rubs his eyes all day though, even when he wakes up happy and well-rested. It's almost a constant thing. Does anyone know why that might be? I wish I could help him sleep more but I just don't know how