Previous: How To Get My 8, 9 or 10 Week Old To Sleep Now that your little one is more alert and active throughout the day, settling to sleep might be more difficult than it was at 8, 9, or 10 weeks old! Often times young babies who previously slept well (or even just "okay") as newborns suddenly start taking teeny tiny catnaps or waking every couple of hours at night. What's an exhausted parent to do!? Let’s take a look at the 6 steps to help your 11, 12 or 13 week old baby sleep. In