寝かしつけてたら一緒に寝落ちてしまったって英語でなんて言うの？

The first suggestion uses the phrase 'in the end', to mean the result / outcome; and also uses past tense phrasal verb 'drifted off', which suggests a gentle, gradual (slow) process. The second suggestion uses some quite difficult / advanced words: 'Succumbed' meaning basically to surrender, or to not resist, and 'Slumber' meaning sleep ... this is quite a poetic way to express this! The third suggestion is basically the same as the first, but instead of using 'drifted off, using 'dozed off'; again being another way to suggest a gentle, gradual (slow) process, but 'doze' is more specifically referring to sleep than 'drift' (which can be used in other ways) *IE* The boat was not tied or anchored, so drifted out to sea on the tide

If there is a situation where you fell asleep trying to put your son or daughte to sleep, you can express this by saying:- 1. I fell asleep while putting my child to sleep. 2.I meant to put my son/daughter to sleep but I ended up falling asleep as well. Sometimes this happens to parents due to exhaustion, they end up falling asleep when attempting to put their children to sleep.The expression "end up" or "ended up" means that what happened in the end was not the intention from the beginning.

When you want to explain that you were putting your child to sleep and you also fell asleep; then you may express this in the following ways: -I was putting my child to sleep and I also fell asleep. -While I was putting my child to sleep, I fell asleep as well

You could say, "While trying to get my child to sleep, I fell asleep." While - Meaning at the same time. "We ate dinner while we waited for the sun to set." You did both at the same time. Trying - attempting to do something. "He is trying to pass the test." Or you could simply say, "My child and I fell asleep together." Other ways to say this are. "My son and I fell asleep together." "My daughter and I fell asleep together."

Whenever I put my baby to sleep, I end up falling asleep too! When I put my baby to sleep I should know that I will fall asleep too. I always end up falling asleep when I put my child to sleep. Putting a child to sleep is not easy without a nighttime routine. Use the sentences above to explain that when you put your child to sleep, you end up sleeping too.

1.I fell asleep too while putting my child down for the night. This happens quite often when a mom is overcome by a feeling of exhaustion that she falls asleep herself.To put your child down for the night means to put your child to sleep. 2.I nodded off too when I put my child to bed. The phrase "nodded off" means to fall asleep as well without intending to do so.This usually happens when you are suffering from extreme tiredness/fatigue.