Night Sleep and Feedings

Split Nights and Long Awake Periods

Split Nights and Long Awake Periods

What a split night means A split night is an extended period of wakefulness in the middle of the biological night, often lasting roughly one to several hours. The baby may babble, roll, feed intermittently, cry, or lie quietly while showing little sign of returning to sleep. The defining feature is duration and alertness, rather […]

Early Morning Waking in Babies

Early Morning Waking in Babies

Why early waking happens Babies do not begin life with a mature biological clock. Their circadian rhythm, the approximately 24-hour timing system that coordinates sleep, alertness, body temperature, and hormone secretion, develops gradually after birth. Light exposure and repeated patterns of feeding and activity help organize this rhythm. In the early months, the distinction between […]

How often babies wake at night

How often babies wake at night

What counts as normal night waking? Infant sleep is organized into repeated sleep cycles rather than one uninterrupted block. Babies may briefly arouse between cycles, move, vocalize, or open their eyes. Some return to sleep without assistance, while others signal for a caregiver. Parents therefore may notice only some arousals, and reported waking frequency can […]

Connecting Sleep Cycles Without Full Waking

Connecting Sleep Cycles Without Full Waking

What Happens Between Infant Sleep Cycles Sleep is not a single uniform state. It alternates between non-rapid eye movement sleep, or NREM sleep, and rapid eye movement sleep, or REM sleep. NREM sleep generally becomes progressively deeper, while REM sleep is associated with greater brain activity, variable breathing, eye movements, and more active dreaming in […]

Why baby wakes up at night

Why baby wakes up at night

Night waking is often normal in infancy Babies are not born with a fully mature circadian rhythm, the internal timing system that helps coordinate sleep and wakefulness across a 24-hour day. In the early weeks, many infants cannot reliably distinguish day from night. Their sleep is distributed across multiple periods, and nighttime may look very […]