Study Summary
Many people wonder whether having a snack or drink before bed affects their sleep. This study provides insights into how the timing of eating or drinking in the evening relates to sleep quality and duration in adults.
What They Did
This study utilised 2003–2018 data from the American Time Use Survey, a nationally representative sample of USA residents aged ≥15 years. Participants recorded weekday/weekend activities during a 24-h period.
What They Found
The study revealed that consuming food or drinks less than one hour before going to bed was linked to more frequent awakenings during the night, known as increased wake after sleep onset. Interestingly, those who ate or drank very close to bedtime also experienced a slightly longer total sleep duration. However, when eating or drinking occurred earlier (between four and six hours before bedtime), participants were more likely to achieve optimal sleep duration. As the gap between eating or drinking and bedtime increased beyond one hour, the negative effects on sleep quality became less pronounced.
Why It Matters
These findings offer valuable, population-level evidence about the relationship between evening eating habits and sleep patterns. Knowing that eating or drinking very close to bedtime might disrupt sleep by causing more awakenings, while eating well before sleep supports better overall sleep duration, can help individuals make informed choices about their evening routine to promote healthier sleep.
My Clinical Insight
This study highlights the subtle balance between the timing of evening intake and sleep quality. While a late-night snack may extend total time spent in bed asleep, the increased sleep interruptions could reduce the restorative benefit of that sleep. Encouraging patients to finish eating or drinking a few hours before bedtime might support a smoother, less disrupted night’s rest, which is often a priority for those struggling with sleep. Clinicians can use this evidence to individualise advice, especially for those reporting fragmented sleep.
Until sleep feels natural again, Dr Noaman
