measurement
In the study by Tham et al., the short-variable group began with the lowest sleep duration in infancy and increased as toddlers, but remained significantly lower in total duration than the long-sleep groups at 18 and 24 months; by age 4, total overnight sleep duration converged across all groups, though the short-variable group continued to exhibit the highest variability in sleep patterns.
Authors
Sources
- Sleep Across the Lifespan: A Neurobehavioral Perspective link.springer.com via serper
Referenced by nodes (2)
- sleep-wake patterns concept
- sleep duration concept