Just trying to provide some perspective. I don't know any old-time poultry folks who get up in the middle of the night to provide warm water for their birds. Feed and water in the evening before the birds go to roost, yes. Feed and water early in the morning, yes. Middle of the night? No. Poultry people in colder climates tend to be more worried about excess humidity in the coops. Many don't even keep food or water in the coop itself, especially at night. It can attract rodents and other critters you don't want to be feeding. You did mention you are new to the poultry world. Don't believe everything you read on BYC. If your chickens are healthy and had access to water before they went to roost, they will not dehydrate if you water them at 7 am (which is before sunrise at this time of year) instead of 3 am. If you are using lights in the coop before sunrise your timing may vary, but that four hour window will not be a problem for a healthy bird.
Granted, I live in AZ, and the coldest it gets in our area is 15 degrees and we don't light the coops for anything but chicks.
That being said, we never put food or water in the coop after the chicks reach the age to roost without light, around 8 weeks or so. They wouldn't be able to see it anyway, and we get up before it's light outside and let them out at the first hint of morning, so they have access to feed and water right away. It's never been a problem that I can see.