A five-month-old typically needs 12 to 16 hours of total sleep in a 24-hour period, including naps. That range, endorsed by the American Academy of Pediatrics for infants 4 to 12 months old, covers a wide spectrum because every baby is different. Most five-month-olds split that time between roughly 10 to 12 hours of nighttime sleep and 2 to 4 hours of daytime naps.
Daytime Naps at Five Months
Most five-month-olds take three naps a day, though some still need four shorter ones. Nap length varies widely at this age. Many babies nap for only 30 to 45 minutes at a stretch, while others occasionally sleep for two hours. Short naps are extremely common and not necessarily a problem as long as your baby’s total sleep across the day falls within that 12-to-16-hour window and they seem rested between sleeps.
If your baby consistently takes 30-minute naps, four naps may be necessary to get enough daytime sleep. If naps run longer, three is usually enough. The key metric isn’t nap count or individual nap length. It’s whether your baby can make it to bedtime without becoming overtired.
Wake Windows Between Sleeps
At five months, babies can generally stay awake for about 2 to 2.5 hours before they need to sleep again. Pushing much past that window often backfires: an overtired baby has a harder time falling asleep and tends to sleep less restfully. The first wake window of the day is usually the shortest (closer to 2 hours), while later ones can stretch toward 2.5 hours.
Watch for your baby’s sleep cues, like eye rubbing, yawning, or turning away from stimulation, within those windows. Starting your nap routine at the first signs of tiredness rather than waiting for fussiness makes a noticeable difference in how quickly babies fall asleep.
Nighttime Sleep and Feedings
Most five-month-olds sleep their longest stretch at night, typically 10 to 12 hours with interruptions for feeding. Night feedings are still normal and expected at this age. Breastfed babies generally wake one to three times per night to eat, while formula-fed babies typically need one to two feedings. Some babies this age can sleep a five- or six-hour stretch before their first night feeding, but sleeping through the entire night without eating is not the norm yet.
If your baby was sleeping longer stretches and has suddenly started waking more often, that’s common too. The four-month sleep regression often spills into the fifth month, and developmental changes can keep nighttime sleep choppy for several weeks.
Why Sleep Gets Disrupted Around This Age
Around four to six months, babies undergo a permanent shift in how they sleep. Their sleep cycles change from the deep, newborn-style pattern to a more adult-like cycle that alternates between lighter and deeper stages. During lighter phases, your baby may partially wake up. If they haven’t figured out how to settle themselves back to sleep, they’ll cry for help.
Physical milestones add another layer. Many babies start rolling between four and six months, and they often practice this new skill at night, sometimes waking themselves up in the process. This is temporary. Once the novelty of rolling wears off, nighttime practice sessions fade. Other developmental leaps, like increased awareness of their surroundings and early attempts at sitting, can also cause restlessness that disrupts previously stable sleep patterns.
Sleep Safety When Your Baby Starts Rolling
Rolling introduces an important change to sleep safety. If your baby can roll both ways (back to belly and belly to back), you can let them stay in whatever position they end up in during sleep. You should still place them on their back at the start of every sleep, but you no longer need to flip them if they roll onto their stomach on their own.
The more urgent change: if your baby is showing any signs of trying to roll, it’s time to stop swaddling. A swaddled baby who rolls onto their stomach cannot use their arms to push up or reposition, which increases the risk of suffocation. Most babies begin attempting to roll around three to four months, so by five months, the transition out of a swaddle should already be complete. Sleep sacks with arms free are a safe alternative that still provides warmth and comfort.
What a Typical Day Looks Like
A realistic five-month-old schedule looks something like this: wake up around 7 a.m., first nap around 9 a.m., second nap in the early afternoon, a possible third nap in the late afternoon, and bedtime between 7 and 8 p.m. The exact timing shifts based on nap lengths and your baby’s individual cues, but the rhythm stays consistent: about 2 to 2.5 hours of awake time, then sleep, repeated throughout the day.
Bedtime is often the lever that makes the biggest difference. If naps were short and your baby is showing tired signs earlier than usual, moving bedtime up by 30 minutes prevents the overtired spiral that leads to more night waking. A slightly earlier bedtime rarely causes earlier morning wake-ups. In fact, it often improves the quality of the whole night.