How Do I Discern Between Extra Sleep & Growth Spurt in my 3 Month Old?

Thank you for asking us about your 3 month old. Let me start by making sure I understand your entire question: Hi! First time mom here. We’ve been doing Babywise since 3 weeks old (11 week old now) and have been sleeping 6+ hours ever since she bought into the Parent Directed Feeding thing :). We’re in Merge 3 but Baby Girl has been doing 5 feedings a day some days. She sometimes sleeps through one morning feeding by either sleeping in too late or taking an extra long nap....