Most babies wake up at night. And although some superhero babies sleep 10-12 hours straight starting around 3-4 months of age, most infants wake up during the night and cry out for their parents. There are scientific reasons and some developmental and behavioral explanations for these awakenings. I spoke with my friend Dr Maida Chen, a pediatric pulmonologist, mother to three, and director of the Pediatric Sleep Disorders Center to put a list together regarding why babies do this. Leave questions and comments below if we can explain more. I’ll author a follow-up blog on ways you can help your baby when they wake up, too.
10 Reasons Babies Wake Up At Night:
- Sleep Cycle: Babies wake up during the night primarily because their brain waves shift and change cycles as they move from REM (rapid eye movement) sleep to other stages of non-REM sleep. The different wave patterns our brains make during certain periods define these sleep cycles or “stages” of sleep. As babies move from one stage of sleep to another during the night, they transition. In that transition, many babies will awaken. Sometimes they call out or cry. Sometimes they wake hungry. It’s normal for babies (and adults) to wake 4-5 times a night during these times of transition. However, most adults wake up and then fall back to sleep so rapidly that we rarely remember the awakening. At 4 months of age, many parents notice awakenings after a first chunk of deeper sleep. This is normal, and often due to development of delta wave sleep (deep sleep). The trick for parents is to do less and less as each month of infancy unfolds during these awakenings; we want to help our babies self-soothe more and more independently (without our help) during these awakenings so that sleeping through the night becomes a reality. Read full post »