08/29/2026
A meta-analysis pooling 13 studies found that alcohol consumption before bed measurably worsens sleep apnea, increasing the apnea-hypopnea index by nearly 4 events per hour on average and lowering oxygen saturation during sleep.
The mechanism is straightforward: Alcohol relaxes the muscles in the throat -- the same ones involved with airway collapse in people with OSA, making the airway even more likely to narrow overnight.
If you already have sleep apnea, the hours before bed matter as much as anything happening in the bedroom itself.
More info here:
Alcohol consumption was found to contribute to the lowest oxygen saturation observed among patients at risk of snoring and obstructive sleep apnea, with additional associations linked to worsening severity of snoring and impaired sleep architecture in select groups, according to study findings.