
Establishing a bedtime routine for your 4-month-old baby can be challenging, but it is an important step towards helping them sleep through the night. At 4 months, babies sleep for about 11 to 16 hours over 24 hours, often taking two to four naps per day. It is important to be responsive to your baby's unique sleep cues and adjust your routine accordingly. A consistent bedtime routine that includes soothing activities like cuddling, rocking, singing, or reading stories can help your baby relax and signal that it is time for sleep. You can also create a sleep-conducive environment by dimming the lights, playing white noise, and reducing noise and playtime at night. Additionally, ensuring a safe sleep environment by following recommendations from trusted sources like the American Academy of Pediatrics (AAP) is crucial.
| Characteristics | Values |
|---|---|
| Sleep duration | 11-16 hours over 24 hours |
| Number of naps | 2-4 naps per day |
| Nap schedule | Several short naps throughout the day (30-45 minutes each) or two longer naps in the morning and afternoon |
| Total nap time | 3-5 hours |
| Bedtime | Between 7-9 pm |
| Sleep training | Start at 5-6 months |
| Sleep regression | May experience more frequent night wakings, shorter naps, difficulty falling asleep, fussiness, and changes in appetite or mood |
| Sleep environment | Safe, flat surface with no soft items or toys |
| Room-sharing | Recommended for the first 6 months to reduce the risk of SIDS |
| White noise | Can be used to signal sleepy time |
| Soothing activities | Cuddling, rocking, singing, reading stories |
| Self-soothing | Encourage baby to fall asleep independently |
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What You'll Learn

Identify sleep regression signs
The 4-month sleep regression is a developmental phase when babies transition from newborn sleep patterns to more mature sleep stages. This biological shift in sleep patterns and cycles can cause a step backward in sleep progress, but it is a normal part of your child's development.
- More frequent night wakings: Your baby may wake up more often during the night, requiring comfort or feeding. This can be due to the brief periods of light sleep between sleep cycles, during which babies may fully wake up and need assistance getting back to sleep.
- Shorter naps: The 4-month sleep regression can disrupt your baby's daytime sleep, resulting in shorter and more fragmented naps.
- Difficulty falling asleep: Your baby may struggle to fall asleep and appear restless around their bedtime. They may also fight sleep more than usual, taking longer to initially drift off.
- Increased fussiness: You may notice changes in your baby's mood during the day, with increased fussiness or irritability. This can be a result of disrupted sleep and the transition to new sleep cycles.
- Changes in appetite: Sleep regression can impact your baby's appetite or feeding habits. They may experience a decreased appetite or have different feeding patterns throughout the day.
- Overtiredness: Due to the fragmented sleep and shorter naps, your baby may become overtired. This can further contribute to the difficulty in falling asleep and maintaining longer sleep periods.
It's important to note that not all babies experience sleep issues during the 4-month sleep regression, and the timing of this regression can vary, occurring as early as 3 months or closer to 5 months. However, being aware of these potential signs can help you identify and address any sleep challenges your baby may face during this developmental phase.
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Create a soothing bedtime routine
Creating a soothing bedtime routine for your 4-month-old can be a great opportunity to bond with your baby and help them settle into a healthy sleep pattern. Here are some tips to create a soothing bedtime routine:
Understand your baby's sleep needs
Every baby is unique, and their sleep patterns will vary. During the first few months, it's normal for newborns to sleep in short bursts of 2-3 hours between feeds. As your baby grows, their sleep patterns will change, and they will gradually transition from newborn sleep patterns to more mature sleep stages. By the time they are 4 months old, they will likely be sleeping a total of 12 to 16 hours daily, including two to three naps during the day. Understanding these developmental changes can help you create a bedtime routine that aligns with your baby's sleep needs.
Establish a consistent bedtime routine
Consistency is key when it comes to soothing bedtime routines. A simple routine of feed, play, sleep can be a good starting point. As your baby gets older, you can add more elements to the routine, such as a warm bath followed by stories or singing, which can signal the end of the day. Maintaining a consistent routine will help your baby develop healthy sleep habits and set them up for sleep success.
Create a soothing environment
About an hour before bedtime, dim the lights and close the curtains to signal that bedtime is approaching. White noise can also be a helpful tool to create a soothing atmosphere. Turn on rough and rumbly white noise about 30 minutes before bedtime. This will help your baby associate the calming sound with sleepy time.
Look for sleep cues
Your baby will give you cues to indicate that they are tired. Fussiness, eye rubbing, or other signs of tiredness can be your cue to start the bedtime routine. Putting your baby to bed when they are drowsy but still awake will help them learn to fall asleep independently.
Encourage self-soothing
If your baby wakes up during the night, gently encourage them to return to sleep. You can wait a minute or two before comforting them to see if they can self-soothe and fall back asleep. If they continue to cry, soothe them briefly without picking them up. This will help them build their self-soothing skills and confidence.
Be flexible and patient
Remember that your baby's sleep needs may change, and it's important to be flexible and patient. If your baby resists sleep or shows no signs of fatigue at bedtime, their bedtime may be too early. Try adjusting the bedtime routine in small increments until you find the ideal time for your baby.
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Make the room sleep-friendly
Making the room sleep-friendly is an important part of establishing a good sleep routine for your 4-month-old. Here are some tips to create a soothing and safe sleep environment:
Dim the Lights and Close the Curtains: About an hour before bedtime, dim the lights in the room or turn off bright overhead lights. Close the curtains to block out any bright sunlight or external light sources. This helps to signal to your baby that bedtime is approaching and creates a calm atmosphere.
Use White Noise: White noise can be a powerful tool to promote sleep and create a consistent sleep cue. Turn on a white noise machine or app about 30 minutes before bedtime. The rough and rumbly sound of white noise can mimic the sounds your baby heard in the womb, providing comfort and familiarity.
Maintain a Comfortable Temperature: Ensure the room is at a comfortable temperature, not too hot or too cold. A stuffy or overly cool room can disrupt your baby's sleep. Use appropriate bedding and clothing for the climate and season. For example, a lightweight swaddle or sleep sack in warmer months and warmer pajamas and bedding in cooler months.
Create a Safe Sleep Space: Follow recommendations from trusted sources like the American Academy of Pediatrics (AAP) to create a safe sleep environment. Always place your baby on their back to sleep on a firm, flat sleep surface. Use a well-fitting sheet to cover the mattress, and remove any soft items, loose bedding, or toys from the crib or bassinet. Ensure all sleep products meet federal safety standards and are approved by the U.S. Consumer Product Safety Commission (CPSC).
Keep the Room Dark and Quiet: During the night, if your baby wakes up for a feed or comfort, try to keep the room dark and quiet. Avoid turning on bright lights or creating stimulating environments. This helps reinforce the difference between night and day and encourages your baby to fall back asleep more easily.
Remember, every baby is unique, and you should adjust your routines and the sleep environment based on your baby's individual needs and cues.
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Try the wake-and-sleep method
The wake-and-sleep method is a gentle sleep training strategy developed by Dr. Harvey Karp. It involves literally waking your sleeping baby up to sleep train them. This may seem counterintuitive, but those few seconds of drowsy waking, without being held or nursed, are your baby's first steps to understanding that they can self-soothe and sleep through the night.
Here's how to use the wake-and-sleep method:
Step 1: Swaddle your baby—unless they can roll. It is no longer safe to swaddle a baby arms-down once they can roll, unless they are safely secured in a sleep space that prevents rolling, such as a SNOO bassinet.
Step 2: Crank up the white noise—turn on rough and rumbly white noise about 30 minutes before bedtime to set a sleepy atmosphere. White noise can help 80% of infants fall asleep in just 5 minutes!
Step 3: Try a pacifier—sucking can lower a baby's heart rate, blood pressure, and stress levels, making a pacifier an effective bedtime helper. However, some sources suggest removing pacifiers from your baby's reach during bedtime to prevent them from waking up in the middle of the night when the pacifier falls out.
Step 4: Incorporate other calming activities—does your baby calm down after a bath, a loving massage, or hearing a soft lullaby? Be sure to include these calming activities in your nightly routine.
Step 5: After a few seconds, your 4-month-old will close their eyes and drift off to sleep again. If your baby is swaddled and shushed, and their tummy is full, they should be able to fall back to sleep fairly easily. If your baby resists sleep, crank the white noise up a little louder and jiggle the bassinet for a few seconds to help them along.
If crying persists, pick your baby up to feed or soothe them to sleep, and then start over again by waking them with a gentle touch.
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Cuddle and comfort
Cuddling your baby is a great way to help them feel secure and loved. It can also promote sleepiness, especially when combined with other soothing activities.
If your baby wakes up during the night, it is important to gently encourage them to return to sleep. You may want to wait a minute before comforting them to see if they can self-soothe. If they are still upset, try being comforting and reassuring, lightly rubbing their head while talking in a soft, soothing voice until they calm down. You can then quietly walk away and leave them to fall back to sleep.
If your baby is swaddled and soothed, with a full tummy, they should be able to fall back to sleep fairly easily. If they continue to resist sleep, you could try increasing the volume of the white noise or gently jiggling the bassinet. If they are still upset, pick them up and soothe them back to sleep.
It is important to establish a consistent bedtime routine, which can include cuddles and comfort. A warm bath followed by stories or singing can signal the end of the day and help your baby relax. You can then put them into their crib while they are drowsy but still awake. If they cry, stay away for a few minutes to see if they settle. If the crying continues, soothe your baby for a moment without picking them up.
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Frequently asked questions
A 4-month-old baby should be getting around 12 to 16 hours of sleep daily. This includes a longer stretch at night and two to three naps during the day, totalling 3 to 5 hours of daytime sleep.
A bedtime of between 7:00 and 9:00 p.m. is recommended for 4-month-olds. It is harder to get a baby to sleep after 9:00 p.m.
Look out for signs of fussiness or eye rubbing, which can indicate that your baby is tired. A warm bath, followed by stories or singing, can signal that it's bedtime.
The sleep environment should be safe and secure. Remove any soft items, pillows, soft bedding, crib bumpers, or toys from the crib or bassinet. Ensure the room is dimly lit and quiet if your baby wakes up during the night.
The 4-month sleep regression is a phase when babies who previously slept well start waking up more often and struggle to fall back asleep. To deal with this, maintain a consistent sleep routine, offer comfort and reassurance, and encourage your baby to develop independent sleep habits. Focus on establishing a predictable bedtime routine that includes soothing activities.











































