A five-month-old baby typically sleeps 12 to 16 hours in a 24-hour period, split between nighttime sleep and daytime naps. Most parents report their babies landing around 14 hours total, with roughly 10 to 11 hours at night and 3 to 3.5 hours spread across daytime naps.
Nighttime Sleep at Five Months
By five months, most babies are capable of sleeping longer stretches at night, often 6 to 8 hours without waking. A typical night looks like 10 to 11 hours of total nighttime sleep, though that doesn’t always mean uninterrupted sleep. Many five-month-olds still wake once or twice to feed, and that’s physiologically normal during the first year of life. Babies wake for both hunger and comfort at this age, so a nighttime waking doesn’t necessarily mean something is wrong.
As babies grow, the balance shifts: total sleep decreases slightly, but a larger share of it consolidates into nighttime hours. At five months, you’re in the middle of that transition, which is why nights are getting longer but may still feel unpredictable.
What Daytime Naps Look Like
Most five-month-olds take three to four naps per day. The pattern varies quite a bit from baby to baby, but a common setup is two longer naps of 60 to 90 minutes and one shorter “catnap” of 30 to 45 minutes near the end of the day. Some babies are still on four shorter naps at this age, each lasting around 30 minutes, and that’s also within the normal range.
Total daytime sleep usually falls between 2.5 and 3.5 hours. If your baby is consistently napping less than 2 hours total during the day or more than 4 hours, it may be worth adjusting nap timing. Babies who nap too much during the day often have more fragmented nighttime sleep, and babies who nap too little can become overtired, which paradoxically makes it harder for them to fall asleep at night.
Around this age, many babies begin transitioning from four naps to three. You’ll notice this shift when your baby starts resisting the last nap of the day or when naps start running longer on their own.
Wake Windows Between Sleeps
A five-month-old can comfortably stay awake for about 2 to 3 hours between sleeps. These “wake windows” tend to be shorter in the morning and gradually stretch as the day goes on. The first wake window after your baby gets up might be closer to 2 hours, while the last stretch before bedtime is often 2.5 to 3 hours.
If your baby is getting fussy, rubbing their eyes, or losing interest in toys well before the 2-hour mark, they may need sleep sooner. If they seem alert and happy past the 3-hour mark, they may be ready for slightly longer wake windows, which typically happens closer to 6 months.
The Five-Month Sleep Regression
If your baby was sleeping well and suddenly isn’t, you might be dealing with a sleep regression. Babies commonly experience disrupted sleep between 4 and 6 months, and five months sits right in the middle of that window. Not every baby goes through it, and severity varies widely.
Several things drive this regression. Physically, many five-month-olds are learning to roll over, and practicing this new skill can wake them up or leave them stuck in an uncomfortable position. Cognitively, babies around this age begin developing object permanence, meaning they now understand that you still exist even when you leave the room. So when they wake at night and you’re not there, they notice and may cry for you.
Sleep regressions generally last two to six weeks. They’re a sign of healthy development, even though they feel exhausting in the moment. The disruption tends to be shorter when it’s tied to a single skill (like rolling) and longer when multiple developmental changes are happening at once.
Sleep Training at Five Months
Five months falls within the age range where sleep training is considered developmentally appropriate, typically 4 to 6 months. By this age, most babies are physically capable of sleeping six-hour stretches between feeds overnight, which means they have the biological foundation to learn longer independent sleep.
Several approaches work at this age. Gradual methods involve slowly reducing your presence at bedtime over days or weeks, giving your baby time to adjust. The pick-up/put-down method has you soothe your baby when they cry, then place them back down once they’re calm, repeating as needed. Timed check-in methods involve leaving the room and returning at gradually increasing intervals to offer brief comfort. Each of these has a different balance of parental involvement and speed of results, and no single method works best for every family.
One sign your baby may be ready for sleep training: they’re waking frequently throughout the night and need to be soothed or fed each time to fall back asleep. This suggests they haven’t yet learned to connect sleep cycles on their own, which is the core skill sleep training builds.
Safe Sleep for Rolling Babies
Many five-month-olds have started rolling, and this changes the safety picture. If your baby can roll, you should stop swaddling immediately. A swaddle restricts the arms, which means a baby who rolls onto their stomach may not be able to reposition themselves or keep their airway clear. A sleep sack with open arms is a safe alternative that still provides warmth and coziness.
Continue placing your baby on their back to start every sleep, even if they roll onto their stomach during the night. Once a baby can roll both ways on their own, they can stay in whatever position they find comfortable. The priority is keeping the crib completely clear of blankets, pillows, stuffed animals, bumpers, and sleep positioners. Once your baby is mobile, the entire sleep surface is accessible to them, so every inch of it needs to be free of suffocation risks.
A firm, flat mattress with a fitted sheet in a crib, bassinet, or portable play yard remains the safest setup. Avoid letting your baby sleep on couches, armchairs, or in swings and car seats (unless actively traveling in a car).
When Sleep Totals Vary
The 12 to 16 hour range is wide for a reason. Some five-month-olds are naturally shorter sleepers who thrive on 12 to 13 hours, while others genuinely need 15 or more. The best gauge isn’t hitting a specific number but observing your baby’s mood and alertness during wake windows. A baby who is generally content, engaged, and meeting developmental milestones is getting enough sleep, even if the total is on the lower end of the range.
Day-to-day variation is also normal. A baby who napped poorly might sleep longer at night, or a baby going through a growth spurt might sleep more across the board for a few days. The overall pattern across a week matters more than any single day.