Re: 5-week old napping too long?
Every baby is different. It seemed like all 3 of mine slept constantly for the first three months, and suddenly they "woke up" at 3 months old and began interacting, getting onto a real schedule, staying awake after nursing here and there, you know.
Newborns can be very sleepy people.
I would just let him sleep. If you can pump, try that. You guys will find your own rhythm and get on your own schedule soon enough. Good luck.
Sarah, mom of many