- Infant sleep duration seems to have no effect on developmental motor and mental outcomes.
Why this matters
- Accompanying editorial notes mixed bag of results on infant sleep and developmental outcomes and says “the jury is still out.”
- Expectant parents should learn about normal infant sleeping to protect against inflated expectations.
- At age 6 months:
- 62.4% of mothers reported ≥6 hours of infant sleep.
- 55.0% of cohort were breastfeeding, but 80.8% sleeping
- 57.0% of infants got
- At age 12 months:
- 27.9% of infants sleeping
- 43.4% reported
- No associations of sleep duration with concurrent motor or mental development or maternal mood.
- Maternal report on sleep, feeding method (breast or formula) of 388 infants, whether they slept
- Motor and mental developmental measures taken concurrently, along with maternal mood.
- Funding: Ludmer Center for Neuroinformatics and Mental Health, Canadian Institutes of Health Research, others.
- Mothers might have missed some awakenings.
- No objective sleep measures.
- Variables like introduction of solid food not known.