Re: what age did you leave child overnight?
One night at 18mo-2 years because I was at the hospital to have a sibling. Fun trips for an overnight to grandparents who live close by(8 miles) begin after they turn 3yo based on desire and readiness. I was gone for just over 24 hours last month when Fionn was born and I was very anxious to be away from Poppy who was 26mo and still nursing. She stayed at her own house with my mom and her siblings and she did great.
Just in case.