I'm on my phone so can't actually see how old your bubs are but I personally wasn't ready to try any form of sleep training under 12 months. We chose from 11pm Onwards. The first night she cried for 45 mins on and off, she was really trying to go to sleep but also really cross she didn't have booby, she woke three times. DH was the one getting up to her because if I'm there then she will scream a lot more, she knows I have the booby. 2 nd night was about 20 mins of tears, 3rd night she slept through. Never did we leave her, it was lots of cuddles and comfort. We have only ever taken a gentle approach and found this quite challenging. I cried the first night but I'm now glad we persevered. She didn't need to wake 2-3 times a night , she was waking out of habit and is much happier during the day now she is getting a good nights sleep.