Hello All, my toddler is 15months old. She has always slept in the cot. However for the past 2 weeks she only sleeps in the cot for about 10mins before waking and crying hysterically. As soon as I pick her up she sleeps on me instantly. I really try with putting her back down but once I've done this 100 times and I get to about 3am I let her sleep next to me. Then she'll happily sleep through for like 7hrs. But we're just sharing a little mattress on the floor. It's not ideal. My partner is in the bed. I don't know why she has suddenly changed to only wanting to sleep with me. She has never had trouble sleeping in the cot. I tried to not pick her up and just talk to her and she cried hysterically for 3hrs and still didn't fall asleep. Is this is a phase? Is there something I can try that isn't just "leave her to cry".