Little one (who isn't so little at 18lbs) passed her 4month mark and I started to use my diffuser with Lavender oil and now have a calming sleep oil. I don't know if it's a coincidence or not but I am so happy to say she sleeps WONDERFUL at night when I use it. I missed one evening this week and it was the only night she wouldn't go to sleep until past 1am. Now it's 8:30-9:30 time she's asleep and only wakes to nurse once. I was so shocked the first time she didn't wake at all. I slept for 7 HOURS STRAIGHT and woke her to feed because my milk jugs were super full haha! So if anyone reads this and it works for your little love also, let me know. I use to get anxiety when night time crept in because she put up such a tiresome long fight for sleep. Days would go by and I was running on 2-3hours of sleep and taking 3 other kiddos to school when hubs was working.