Hi, I'm hoping someone could share their advices with me... my baby is a very active 5 month old, she's always moving nonstop. Rather than the average norm of sleeping 14-15 hrs/day for her age, she gets at most 10 hrs. A few days ago, she managed to flip from her backside to her tummy & has been doing it nonstop. Just last night, we placed her in her crib (on her back) at 6:30pm & instead of sleeping, she was on her tummy looking around until ~8pm. Everytime we put her back onto her backside, she would move onto her tummy again. We must have put her back at least a good 10X. She finally slept at 8pm, but then woke up again at 8:30pm. Fell asleep again at 10pm & was up this morning at 4am (& just went back for her morning nap ~8:30am). Again, she was on her tummy! I've tried to sleep train her (with advice from the Healthy Sleep Habits, Happy Child book by Marc Weissbluth) since this Jan, but have not been too successful. Any advice would be much appreciated... thanks!