A 5-month-old typically needs 12 to 16 hours of total sleep per 24-hour period, split between nighttime sleep and daytime naps. Most babies this age get around 10 to 11 hours at night (with wakings for feeds) and another 3 to 3.5 hours during the day across multiple naps.
Total Sleep and How It Breaks Down
The 12-to-16-hour range covers quite a bit of ground, and where your baby falls depends on temperament, activity level, and how well naps are going on any given day. A common pattern at 5 months looks something like 10 to 11 hours of overnight sleep plus 3 to 3.5 hours of daytime naps. Some babies consolidate more sleep at night and nap less during the day, while others do the reverse. Both are normal as long as the total lands in that range.
What Naps Look Like at 5 Months
Most 5-month-olds take three naps a day, with a combined goal of about 3.5 hours of daytime sleep. The length of individual naps varies quite a bit. Some days all three naps run 1 to 1.5 hours. Other days, the first two naps are longer and the third is a short “cat nap” of 20 to 30 minutes. That shorter third nap is perfectly fine and often serves as a bridge to keep your baby from getting overtired before bedtime.
A smaller number of 5-month-olds still need four shorter naps, especially if they can only handle shorter stretches of awake time. This is more common earlier in the month and usually transitions to three naps as the baby matures.
Wake Windows Between Naps
Wake windows, the stretches of time your baby stays awake between sleep periods, are one of the most useful tools for timing naps well. At 5 months, most babies handle 2 to 3 hours of awake time between naps. That said, mornings tend to be shorter: many babies can only manage 1.5 to 2 hours of wakefulness after their first wake-up before they need that first nap.
The last wake window of the day, between the final nap and bedtime, typically falls around 2 to 2.5 hours. If your baby consistently needs shorter wake windows across the board (closer to 1.5 to 2 hours), they’ll likely still be on a four-nap schedule, which is normal for the younger end of this age.
Getting wake windows right matters because putting a baby down too early leads to short naps and fights at bedtime, while waiting too long tips them into overtiredness, which paradoxically makes it harder for them to fall asleep.
Signs Your Baby Is Getting Overtired
Sleepy cues at this age include eye rubbing, droopy eyelids, yawning, and a general loss of interest in toys or people. These signals can escalate quickly. Once a baby crosses from tired into overtired, their body releases stress hormones like cortisol and adrenaline that actually rev them up instead of calming them down. An overtired baby often cries louder and more frantically than usual, may seem wired or hyperactive, and can even start sweating from the cortisol spike.
The practical takeaway: start your nap routine as soon as you notice the early drowsy cues. Waiting for more obvious signs like fussing or crying usually means the window has already passed.
Night Feedings at 5 Months
Even babies who are sleeping longer stretches at night typically still wake to eat. Breastfed 5-month-olds generally need 1 to 3 feedings overnight, while formula-fed babies usually need 1 to 2. This is biologically normal. A baby waking once or twice to eat at this age is not a sleep problem; it reflects their stomach size and caloric needs.
The number of night feeds tends to decrease gradually over the coming months as solid foods are introduced and daytime calorie intake increases. Some babies naturally drop to one feeding or even sleep through the night by 6 months, but many don’t, and both paths fall within the range of healthy development.
The 4-Month Sleep Regression Hangover
If your 5-month-old’s sleep recently fell apart, you may be dealing with the tail end of the 4-month sleep regression. Around 3 to 4 months, babies shift from newborn-style sleep to more adult-like sleep stages. This reorganization causes more frequent night wakings and shorter naps, sometimes for several weeks. By 5 months, most babies are through the worst of it, but some are still adjusting. New skills like rolling over can also disrupt sleep, since a baby who has just learned to roll may practice the movement in their crib and wake themselves up in the process.
Safe Sleep Setup
The American Academy of Pediatrics recommends placing babies on their backs for every sleep, in their own sleep space with no other people. Use a crib, bassinet, or portable play yard with a firm, flat mattress and a fitted sheet. Keep loose blankets, pillows, stuffed toys, and bumper pads out of the sleep area. Avoid letting your baby sleep on a couch, armchair, or in a swing or car seat (unless they’re actually riding in the car).
If your baby has started rolling onto their stomach during sleep, you don’t need to keep flipping them back, as long as they were placed on their back initially and the sleep surface is clear of soft objects. Rolling is a sign of developing strength, and babies who can roll both ways are generally at lower risk of positional issues during sleep.