Why do I pee more at night than during the day?
Last updated September 3, 2026.
Night peeing rises with age because anti-diuretic hormone production drops, and evening fluids, caffeine, and alcohol push it further. Per Guy's and St Thomas' nocturia guidance, daytime ankle swelling rejoins the bloodstream when you lie down and becomes nighttime urine, and light sleepers notice bladders they would otherwise sleep through. Shift fluids earlier, cut evening caffeine and alcohol, prop swollen legs up in the afternoon, and empty before bed. Several nightly trips despite that, or nocturia with burning, cloudy or bloody urine, constant thirst, or snoring with gasping, deserves a GP: infection, diabetes, prostate problems, and sleep apnoea all present this way.
What to do
- Move your drinking earlier; taper fluids in the last two hours before bed.
- Cut evening caffeine and alcohol; both irritate the bladder.
- Prop your legs up in the late afternoon if your ankles swell.
- See a GP for several nightly trips, pain, cloudy or bloody urine, constant thirst, or gasping snoring.
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