What Should My 4-Month-Old Baby’s Sleep Schedule Be Like?

What Should My 4-Month-Old Baby's Sleep Schedule Be Like?

When it comes to ensuring your 4-month-old baby gets the right amount of sleep and establishes healthy sleep patterns, there are several important factors to consider. This stage is crucial for your baby’s development, and understanding their sleep needs can make a significant difference in their overall well-being. Some parents even seek professional help that provides 4-24 months sleep patterns evaluation to help themselves understand their babies’s sleep. In this article, we will explore what a 4-month-old baby’s sleep schedule should look like and provide insights into developmental milestones, activities, and sleep-related challenges that you might encounter.

1. Developmental Milestones

As your baby reaches 4 months of age, they’ll start hitting exciting milestones. Your 4-month-old baby might have now intentionally opened and closed their hands, demonstrating improved motor skills. Your baby might also start putting objects in their mouth, practicing back-to-belly rolling, sitting with support for a short period, engaging in vocal interactions, cooing, and babbling in response to stimuli. Remember that these milestones are approximate and that every baby develops at their own pace.

2. Nap Duration and Frequency

Naps for 4-month-old babies can still be inconsistent, varying in duration from 20 to 120 minutes. It’s advisable to limit any single nap to a maximum of 2 hours, even if it means waking your baby up. This ensures there’s enough time in the day for your baby to consume the necessary daytime calories and prevents them from getting excessive daytime sleep. Total daytime sleep should be around 3.5 to 4.5 hours.

Regarding the number of naps, 4-month-olds typically take about 3 naps a day, but it’s normal to have 3-5 naps depending on the length of each nap. As your baby approaches 5 months old, you can gradually work towards establishing 3 naps a day by consolidating nap times and extending wake windows. If you aim for a bedtime between 7 pm to 8 pm, the last nap should conclude between 5 pm to 6 pm. This allows for 110 – 120 minutes of wake window before bedtime, ensuring your baby is sufficiently ready for sleep.

3. Wake Windows

Typically, at this age, wake windows range from 90 to 120 minutes. It’s important to note that wake windows might start shorter in the morning and gradually lengthen as the day progresses. As your baby grows and develops, these wake windows will need to expand accordingly. For instance, not all babies will be ready for wake windows lasting the full 2 hours at 17 weeks, even towards the end of the day. Conversely, by 21 weeks, a 90-minute wake window may be too short, even in the morning. Balancing your baby’s sleepy cues with their wake windows is crucial during this age-specific range. At around 4 months old, we start fine-tuning this balance to ensure your baby is well-rested.

4. Ideal Bedtime

The ideal bedtime for a 4-month-old can vary but generally falls between 7 pm to 8 pm. Many babies at this age thrive with a bedtime in this range. It’s important to observe your baby’s behavior and adjust their bedtime accordingly to ensure they receive the right amount of sleep. If your baby experiences challenges such as false start bedtimes, night wakings, or early morning wakings, consider shifting their bedtime towards the 7 pm to 8 pm range, as this might help address these issues.

5. Engaging Activities

Engaging activities for your 4-month-old can be both fun and beneficial for their development. Start with tummy time, using this opportunity to read books and sing songs together. A playmat or play gym encourages tummy time while also promoting independent exploration and rolling practice. Provide safe toys that allow your baby to explore using their senses, particularly those they can safely mouth. Consider crinkle books with bold colors and patterns to stimulate their visual and tactile senses. Lastly, introduce a baby-safe mirror for some interactive and enjoyable mirror play. These activities support your baby’s growth and understanding of the world around them.

6. Swaddling and Safe Sleep

Swaddling depends on your baby’s skills and age. According to the American Academy of Pediatrics, babies can remain swaddled until they show signs of rolling. Once your baby demonstrates rolling, it’s time to transition out of the swaddle.

7. The 4-Month Sleep Regression

Around the age of 4 months, many babies go through a significant change in their sleep cycles, often referred to as the 4-month sleep regression. This change can disrupt your baby’s sleep patterns, and you might find that strategies that worked before no longer do.

8. When Do Babies Sleep Through the Night?

Every baby is unique, and there is no fixed age when they start sleeping through the night. However, some babies can sleep for 10-12 hours without waking up for feeds at 4 months old. The key is babies can self-soothe themselves back to sleep again whenever they wake up in the middle of the night.

9. Addressing Sleep Challenges

If your 4-month-old baby is resisting sleep, it could be due to being overtired or undertired. To help your baby fall asleep more easily, follow age-appropriate wake windows and maintain a consistent bedtime routine. Sleep disruptions can also occur during developmental milestones or the 4-month sleep regression.

10. Sleep Training at 4 Months

If you’re struggling with your baby’s sleep and need personalized guidance, consider infant sleep training Singapore provided by Sleepy Bubba. An infant sleep consultant Singapore can understand your baby’s sleep patterns and conduct a 4-24 months sleep patterns evaluation. They can also offer expert advice, and provide a tailored sleep plan that suits your family’s needs. At Sleepy Bubba, we specialize in helping parents navigate the complexities of infant sleep patterns. We are here to support you and your baby on your sleep journey. Don’t hesitate to schedule a complimentary 20-minute discovery call with us to discuss your baby’s sleep and explore solutions for better sleep.


What Should My 4-Month-Old Baby's Sleep Schedule Be Like?

In summary, understanding and managing your 4-month-old baby’s sleep schedule is essential for their overall development and well-being as parents. While every baby is unique, following age-appropriate guidelines for wake windows, naps, and bedtime can help create a more predictable and restful sleep routine. If you encounter challenges or need personalized guidance, remember that we are here to start your journey toward better sleep for both you and your baby. Your baby’s sleep success starts here!


  • Leann Low

    Hi, I am Leann Low, a Certified Baby Sleep Consultant and a mother to two healthy and energetic boys. I am a Baby Sleep Consultant based in Singapore, certified by the Sleep Sense™ Program created by Dana Obleman. As a sleep-deprived parent turned sleep consultant, I am certain that I can help you achieve the good sleep that you and your little one sorely need.