How do I get my 6.5MO to Nap longer than 30 minutes?

I’ve read plenty of articles that some babies nap for 30 minutes. and even less so as they get older.There are times I play with him for hours on end in hopes that he’ll nap longer. NOPE. still naps for 30 minutes.What have you done to help your baby nap longer?Side question: when do infants/toddlers start falling alseep in their own?Typing on iPhone keyboard. Very bad automation via /r/Parenting https://ift.tt/2xKjCmy