Infant night sleep trajectory from age 3-24 months: evidence from the Singapore GUSTO study

The sleep trajectory of Singaporean infants appeared similar to other predominantly Caucasian cohorts for 3-12 months but not for 12-24 months, in which infants from predominantly Caucasian cohorts mostly displayed a decreasing or a stable-plateaued trajectory. This is in concordance with existing studies that suggest that the underlying influences of night sleep shift from predominantly biological influences to increasing environmental influences with age.