6 months baby crying at 2'o clock sleep time to drink water

A. Alot of babies start waking up again around this age..may be due to sepration anxiety..which is common at this age... it could also be partially related to teething. 6-9 months was a rough age for us. I would say , if he is asleep after crying for while in sleep leave him and comfort him if he wakes. Make sure the room temp is not to warm or cold and there are dim lights, even your cell phone should be off .