It's generally recommended to stop drinking water one to two hours before bedtime. This helps minimize nighttime bathroom trips and sleep disturbances. However, if you wake up at night due to thirst or dehydration, a small sip of water closer to bedtime might be necessary.
It's important to stay hydrated throughout the day to avoid feeling thirsty at night. Drinking water when you're thirsty and until your urine is light yellow to clear is a good indicator of proper hydration. Avoid drinking more than 1 liter of fluid per hour to allow your kidneys to process the fluids effectively.
Remember: Everyone is different, and your individual needs may vary. If you experience any unusual thirst or dehydration, consult with a healthcare professional.