Now that it's colder, we have the heater running and it gets pretty dry in the house. I give Sophia a spill proof sippy cup for her crib every night. She can drink if she is thirsty. I have a bottle of water in my bed for myself that's why I came up w/ the idea. I have seen her (baby monitor/camera) wake up at night, take a sip of water and go back to sleep. Kind of nice that I don't have to get up.
Druing the day I offer milk first. I have a water sippy cup always there, too. And she will point if she wants water.