Sleep medicines did not clearly lower nighttime blood pressure
Placebo-controlled trials found no clear nighttime blood-pressure reduction, with evidence too uncertain to establish a reliable benefit.
Based on the published abstract. The full paper may contain additional methods, results and limitations.
The 30-second takeaway
This abstract-based summary finds that the review did not establish a nighttime blood-pressure benefit from sleep medicines. Average systolic and diastolic results were not statistically significant, leaving benefit uncertain rather than proving no effect. Given the weak underlying evidence, the review does not support a clear blood-pressure treatment role for these medicines.
Evidence certainty was very low to low, and 7 studies had unclear or high risk of bias. The authors highlighted a shortage of adequately powered trials.
What researchers found
Nighttime systolic blood pressure
Pooled weighted mean difference, oral sleep medicines versus placebo, across trials lasting at least 1 week; the result was not statistically significant.
What was tested
The review asked whether oral sleep medicines could lower blood pressure during the night. Eligible trials used placebo comparisons and measured nighttime systolic pressure, diastolic pressure, or both, rather than sleep quality alone.
How to read the result
The pooled estimate leaned toward lower nighttime systolic pressure, but its confidence interval also included an increase. Nighttime diastolic pressure likewise showed no statistically significant effect, so the results leave uncertainty about benefit.
The original publication
Effects of hypnotics on nocturnal blood pressure: a systematic review and meta-analysis of randomised controlled trials.
Hung AT, Lam KT, Lau K et al.
Blood Press · 2025
- PubMed ID
- 41247520
- Record checked
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