I try to never wake my sleeping kids or babies, unless I have no choice. If I do have to wake them for whatever reason (it's getting close to dinner time and thus bed time, or we need to go out somewhere, etc) then I try to do it gently by opening the door and increasing the light in the room.

Just do whatever suits your kids best, there is no point worrying about installing a sleep routine if your bub doesn't have any sleep problems.