Why Do Newborns Often Wake Up at Night?

Understanding Your Baby’s Sleep Cycle and How to Cope

One of the most common struggles parents face with newborns is nighttime wake-ups. Just when you finally close your eyes, your baby starts crying. Again. But why is this happening?

Understanding the Science of Newborn Sleep

Newborns have very short sleep cycles—usually around 50 minutes. Unlike adults, they spend more time in light sleep (REM), making it easy for them to wake up.

Additionally, newborns need to feed frequently. Their tiny tummies can’t hold much milk, which means they wake often—sometimes every 2–3 hours—to eat. This is totally normal and necessary for healthy growth.

Is It Just Hunger?

Not always. Sometimes babies wake due to:
• A wet diaper
• Feeling cold or too warm
• Needing comfort
• Gas or colic
• Being overstimulated before bedtime

Understanding these cues can help you address their needs quickly and get back to sleep faster.

How Long Will This Last?

Most babies begin to sleep for longer stretches by 3 to 6 months old. Establishing a bedtime routine and keeping the room calm and dimly lit at night helps encourage deeper sleep over time.

What Can You Do?
• Create a calm bedtime routine with a warm bath, soft music, or gentle rocking.
• Try not to overstimulate your baby before bedtime.
• Swaddling can help some babies feel secure and sleep longer.
• Share nighttime duties with your partner if possible to get some rest.

Final Thoughts

Waking up at night is normal for newborns, but it doesn’t last forever. With patience and gentle consistency, you’ll both settle into a healthier sleeping pattern.

Mamas’ Guides Editorial Team