Ladies HELP!

Laura • Ethan Ashley born 20th September 2015 at 12.08am weighing 8lb 👶🏼
Ladies, my son drinks at least 4/5 bottles of water a day sometimes juice. But for months his being having water in the night I'm having to take 3 bottles to bed with me. In the morning he wakes up soaked through. He drinks to much at night 😭😭