A 5-month-old typically sleeps 12 to 16 hours in a 24-hour period, split between nighttime sleep and several daytime naps. Most of that sleep is consolidating into longer nighttime stretches by this age, which is a noticeable shift from the scattered sleep patterns of the newborn weeks.
Nighttime Sleep at 5 Months
By 5 months, many babies can sleep in stretches of 6 to 8 hours at night. That’s what “sleeping through the night” realistically means at this age. It doesn’t mean 10 or 12 uninterrupted hours. Even with these longer stretches, most 5-month-olds still wake 1 to 2 times per night to eat. This is completely normal and not a sign of a sleep problem.
Total nighttime sleep typically falls somewhere around 10 to 12 hours, including those brief wake-ups for feeding. As a baby grows through this stage, nighttime sleep gradually gets longer while daytime sleep shortens.
How Naps Usually Look
Most 5-month-olds take 3 to 4 naps per day, totaling about 2.5 to 3.5 hours of daytime sleep. The length of individual naps varies quite a bit at this age. Many babies can’t yet connect one sleep cycle to the next during the day, so naps lasting only 30 to 45 minutes are common and not a cause for concern.
That said, the first two naps of the day often start to lengthen around 5 months, stretching to 1 to 1.5 hours. The last nap of the day tends to stay short. If your baby is a long napper, capping each nap at 1.5 to 2 hours helps protect nighttime sleep by keeping enough sleep pressure built up for bedtime.
Wake Windows Between Naps
A 5-month-old can comfortably stay awake for about 2 to 3 hours between naps. This is a meaningful increase from 3 months, when most babies could only handle 1.5 to 2 hours of awake time. Pushing too far past 3 hours often leads to overtiredness, which paradoxically makes it harder for babies to fall asleep and stay asleep.
Wake windows tend to get slightly longer as the day goes on. Your baby’s first wake window of the day might be closer to 2 hours, while the one before bedtime might stretch closer to 3. Watching for sleepy cues like eye rubbing, yawning, or fussiness is more reliable than watching the clock, since every baby’s tolerance is a little different.
Night Feedings at This Age
Even though 5-month-olds are capable of longer sleep stretches, 1 to 2 nighttime feedings are still typical. Some babies drop to zero night feeds on their own by this point, but many haven’t, and both patterns are normal. The key factor is whether your baby is healthy and gaining weight appropriately. Babies who need to put on weight or have other medical considerations may need those night feeds to continue regardless of sleep goals.
Sleep Training Readiness
Five months falls squarely in the window when sleep training becomes an option. Babies are generally ready to begin around 4 months old, when their sleep cycles start to mature and their internal clock begins regulating day and night more effectively. By 5 months, most babies are developmentally capable of learning to fall asleep independently.
Sleep training and night weaning are two separate things. You can work on helping your baby fall asleep on their own at bedtime while still responding to genuine hunger overnight. Night weaning is considered safe for babies who are healthy and at an appropriate weight, but it doesn’t have to happen on the same timeline as sleep training. If you’re unsure whether your baby is ready, your pediatrician can help you assess based on their growth and health.
Safe Sleep Setup
The American Academy of Pediatrics recommends that babies sleep on their backs, on a firm and flat mattress with only a fitted sheet. The sleep space should be free of loose blankets, pillows, stuffed animals, and bumper pads. Babies should sleep in their own space, not on a couch, armchair, or in a device like a swing or car seat (unless actively riding in a car).
These guidelines apply through the entire first year. At 5 months, some babies are starting to roll, which can worry parents who’ve been placing them on their backs. Once a baby can roll both ways independently, you don’t need to reposition them if they roll onto their stomach during sleep, but always place them on their back to start.