I need some tips on getting my 11 week old to nap in his pack n play. Currently he only naps in his swing (supervised) with a struggle or in my arms, but rarely lasts more than 45 minutes. I would love for him to nap upstairs for 1-2 hours so I can get things done around the house and actually pay attention to the dog for once too. I've read to treat it as bedtime, sleep sack, white noise and black out curtains, but how does he know to only sleep 1-2hours? Do I wake him up? Normally at night he can go up to 6 hours and that's not ok for a nap. Tips would be helpful! Thanks!