Newborn napping question

The only time I can get my baby to nap is if we go into the dark bedroom with the fans going and rock him in our arms. I’m glad he’s finally getting a couple naps in during the day but I hate leaving him in the bedroom since he’s only 12 days old. Is it better to let him nap in the dark or try to keep on napping in the window lit living room? He just gets so cranky bec he’ll go so long without a nap(when we’ve tried getting him to nap next to us in the living room).