Sleep cycles
5 articles
Why Newborn Sleep Is Fragmented
At 4am with a 3-week-old, "your baby's sleep is fragmented for sound biological reasons" is not the comforting line it might be in daylight. But knowi...
Why a Child Wakes at the Same Time Every Night
A waking at 2:15 am for a week running is not random. The remarkable consistency of the timing is itself the diagnostic clue — biology that varies nig...
When Night Wakings Are Considered Normal
Parents are frequently told that infants "should" be sleeping through the night by six months, or three months, or even earlier. These expectations ar...
The Four-Month Sleep Regression: Structural Sleep Changes
The four-month sleep regression is described by sleep specialists as distinct from other regressions because it is not a temporary disruption overlaid...
How Sleep Structure Changes After Six Months
A 6-month-old's sleep looks visibly different from a newborn's, and the change accelerates over the next six months. Cycles get longer, deep sleep get...