Characterization of normative values for daytime sleep macrostructure and sleep spindles in infants


  • In infants, spindle spectral power decreases from the first to second sleep cycles, and there are significant differences between sexes in sleep spindle spectral power and symmetry.

Why this matters

  • Sleep features in infancy are important biomarkers of brain development but have been poorly studied.

  • This study provides normative values for sleep macrostructure and sleep spindles for infants, which can be applied to future studies focusing on early recognition of neurodevelopmental issues.