What to do to a baby who only sleeps when latching? She drinks from a glass already but can never sleep without latching. I have an event in November and I will be away. I'm worried how she'll adjust to situation..

Mommy, why not try to practice her to sleep without 'comfort nursing' as early as now so she won't be surprised when you leave in November. For sure, kids are very adaptable and they will find other ways to go to sleep when their mom is not around. :)