Depending on a person’s age, health status, and physical or sexual activities, the best time to stop drinking water will vary. In general, though, urologist Vannita Simma-Chiang, M.D., recommends taking your last sip of the day three to four hours before bed. (At least, that’s what she does as part of her own pee health routine.) 

And if you really want to ensure you’re getting deep and uninterrupted rest, might we suggest taking your last sip of water alongside mbg’s sleep support+ supplement?* The formula contains a science-backed trio of ingredients: magnesium bisglycinate (a highly absorbable form of magnesium) to support a steady state of relaxation, jujube to promote calm, and PharmaGABA® to enhance your natural sleep quality.* Even better? It’s melatonin-free so you won’t wake up feeling groggy the next day.*

While the exact time to take magnesium will vary, we recommend taking sleep support+ about one to two hours before bed.* And if you’re worried about that being a couple of hours past Simma-Chiang’s recommendation for when to stop drinking water, don’t worry, we reckon those few extra gulps won’t make much of an impact.