Why is warm water good anyway? You learn a lot by the way the body may respond. For example if it's freezing cold, the body doesn't like it. Often when we go out to eat, they bring a big glass of water with ice or they put it from their water container. It just doesn't feel good going down. Now, if I'm really hot, it might be another story.
I use my juicer in the am but I let stuff sit out for a bit to go up in temperature. Have you ever gotten a "brain freeze" from sucking down something too cold... Probably...And you can imagine, done regular, this isn't good for you. The big reason warm water or hot water is actually better for you, #1, is because it's easier for the body to utilize.
Really, just drinking more water period is a benefit. Your body uses it in nearly every reaction. Think about it: H20. Hydrogen and oxygen. Besides that, #2, warm water has been shown to be a good body detoxifier. So, instead of that cold glass of water in the morning, try one that comes off the stove. Another tip, just like drinking water at anytime during the day, is to add things like a lemon, or cloves, maybe ginger. Experiment...