my kids who are newly 2 and 5 just started sharing a room. I know it's somewhat inevitable they will wake each other up, but do any veterans of room sharing have tips? for example last night my 2yo woke up screaming (never figured out why). couldn't get him to calm down so we took him out of the room, but then of course trying to get him back in without more crying was basically impossible. any tricks to minimize disruption to the other kid?