Does red wine help you sleep? — the honest answer

Red wine accelerates sleep onset through alcohol's sedative effect but degrades sleep architecture quality: it suppresses REM sleep in the first half of the night, causes rebound REM and increased awakenings in the second half, reduces deep sleep percentage, and suppresses overnight HRV, the net result is lighter, less restorative sleep despite the subjective sense of falling asleep easily (Ebrahim et al., Alcohol Clin Exp Res, 2013).

The resveratrol in red wine has been claimed to provide compensatory benefit. At the quantities present in a glass of wine, resveratrol has no evidence for sleep benefit in humans. The relevant resveratrol dose in cell-line and animal studies is orders of magnitude higher than what wine delivers. This is not a close call. The sleep benefit people attribute to wine is sedation. The architecture degradation is real, measurable, and visible on any wearable the following morning.

Honesty Scale: Alcohol as sleep aid, Unsupported (5) when sleep architecture quality is the endpoint. Resveratrol in wine as sleep aid, Unsupported (5).

What to do: If you want to test this for yourself, track your HRV, deep sleep percentage, and resting heart rate on wine nights versus non-wine nights on your wearable for 30 days. The data will be unambiguous. You will stop using wine as a sleep aid.

For the full picture, read The Sleep Hygiene Deep Dive