Do I get my 8 month old to take a proper nap? He occasionally will take a decent one but he averages anywhere from 15 mins (seriously....) to an hour. It's maddening because I cannot reliably plan anything around his naps. I'm working on putting him down at the same(ish) time and following a routine. Nothing seems to be the difference between a good nap or a shitty one. It's pure chance. Any advice?