A good bedtime for a 4 month old is between the hours of 6:00 PM and 8:00 PM.
Earlier bedtimes can help prevent overtiredness in the baby and also encourage longer stretches of nighttime sleep that your baby needs.
6:00 PM and 8:00 PM are the recommended bedtimes for 4 month olds which is what sleep experts also recommend.
The earlier your baby can go to sleep, the more easily the baby will fall asleep and the more soundly the baby will also sleep.
It's also okay if your 4 month old's bedtime falls slightly outside of these hours, as long as it works for the baby and yourself.
You should also pay attention to your 4 month old baby's cues and adjust their bedtime as needed.
Some babies may naturally be ready for an earlier bedtime or later bedtime than others.
Sleep regression can also occur in the 4 month old, which can disrupt the 4 month old baby's sleep patterns, so it's also important to be patient and consistent with their bedtime routines.
You should also keep a consistent bedtime routine, which can help signal to the baby that it's time to sleep.
The consistent bedtime routine can include putting on pajamas or other clothing, feeding and even a bath.
You should also ensure that your 4 month old baby is awake for appropriate periods of time, between their naps and bedtime.
At 4 months of age, the wake windows for the baby is often around 1.5 hours to 2 hours.