Temporal Links Between Self-Reported Sleep and Antibody Responses to the Influenza Vaccine.
Level 3 - non-randomized controlled study
Prospective non-randomized observational cohort study
PubMed 32236831 · doi:10.1007/s12529-020-09879-4
What was done
Eighty-three healthy young adults completed 13 days of sleep diaries and received a trivalent influenza vaccine on day 3. Daily self-reported measures included sleep duration, sleep efficiency, and subjective sleep quality. Antibody titers against the vaccine's viral strains were assessed at baseline, 1 month, and 4 months post-vaccination, controlling for baseline antibody levels, age, sex, and cohort year.
What was found
The abstract reports directions of association without numerical values or effect sizes. Shorter average sleep duration across the 13 days was associated with fewer antibodies to the A/New Caledonia viral strain at 1 and 4 months post-vaccination. Analyzing specific nights showed that shorter sleep duration on the two nights prior to vaccination predicted lower antibody levels at 1 and 4 months. Self-reported sleep efficiency and subjective sleep quality were unrelated to antibody responses.
Why it matters
This study links naturalistic, self-reported sleep duration—particularly in the two nights immediately prior to immunization—to subsequent antibody responses against an influenza strain.
Limits
The sample size was small (83 healthy young adults), limiting generalizability to broader or clinically vulnerable populations. Sleep was measured exclusively via self-report rather than objective methods (such as actigraphy or polysomnography), and the abstract provides no specific numerical values, confidence intervals, or p-values, noting an effect for only one of the trivalent vaccine strains.
Cited by
- supports People who get more sleep prior to vaccination develop a stronger immune response with higher antibody titers, such as to the influenza vaccine.