Little one (8 months) is waking on the dot of 45 minutes during daytime naps, and is unable to resettle himself. What worked for you to break this habit? The sleep assossiations of white noise/dark room/dummy are still there so it's not like he's used to being rocked or sung to or something. He goes down ok. Any suggestions? I've tried leaving him but he just ramps up to proper crying.