Sleep Tips

    Navigating Week 4 with Your Newborn: Fussiness, Growth Spurts, and Sleep Tips

    At week 4, your newborn might be more fussy and wakeful. This guide helps you understand these changes and offers tips to encourage better sleep patterns.

    April 10, 20265 min readBy Nestling Team

    Understanding Newborn Fussiness and Growth Spurts

    During weeks 4 to 6, it's common for newborns to experience peak fussiness. This is often linked to a growth spurt, where your baby might seem hungrier and more irritable. Growth spurts can last a few days, and during this time, your baby may need extra feeds and cuddles. It’s important to respond to their needs, even if it feels exhausting. Remember, this phase is temporary and usually subsides after a few days.

    Increased Wakeful Periods and Developing a Circadian Rhythm

    By week 4, your baby might start having longer wakeful periods. This is a sign that their circadian rhythm is beginning to develop. Babies at this age typically need about 14-17 hours of sleep in a 24-hour period, with wake windows of approximately 45 minutes to 1 hour between naps. Observing cues like yawning or rubbing eyes can help you detect when your baby is ready for sleep, minimizing overtiredness.

    Encouraging Day/Night Differentiation

    To help your baby distinguish between day and night, start creating a consistent sleep environment. During the day, expose your baby to natural light and engage in active play during wakeful periods. At night, keep the room dimly lit and minimize noise and stimulation. A calming bedtime routine, such as a gentle massage or a lullaby, can signal to your baby that it's time to wind down for sleep.

    Quick Tips

    • ✓ Tonight, try dimming the lights and reducing noise an hour before bedtime to help your baby wind down.
    • ✓ During daytime naps, keep curtains open to expose your baby to natural light, reinforcing day/night patterns.
    • ✓ Pay close attention to your baby's sleep cues like yawning or fussiness to prevent overtiredness.

    Track your baby's schedule with Nestling — download free on the App Store.

    Disclaimer: This content is for informational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Every baby is different, and what works for one may not work for another. Always consult your pediatrician or a qualified healthcare provider with any questions regarding your child's health or development.

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