A 5-month-old typically needs 12 to 16 hours of total sleep per day, spread across nighttime sleep and several daytime naps. Most babies this age get about 10 to 11 hours at night (with some wakeups) and another 2.5 to 4 hours during the day across three or four naps.
Nighttime Sleep at 5 Months
By 5 months, most babies are settling into longer stretches of nighttime sleep, usually totaling 10 to 11 hours. That doesn’t mean 10 uninterrupted hours, though. Waking once or twice overnight for a feeding is still normal at this age. During the first year of life, nighttime feeds remain common for both breastfed and formula-fed babies. Formula-fed babies can sometimes start dropping night feeds around 6 months, while breastfed babies often continue longer.
If your baby was sleeping longer stretches and suddenly starts waking more, it may be tied to a developmental shift. At 5 months, many babies are learning to roll from front to back or back to front. This new skill can disrupt sleep for a couple of weeks as your baby practices the movement, even in the crib. Once the novelty wears off, sleep usually stabilizes again. Teething or a mild illness can also cause temporary disruptions. One way to tell if your baby is waking from discomfort rather than habit: they wake sooner than 40 to 50 minutes after falling asleep, meaning they’re waking mid-cycle rather than between sleep cycles.
How Many Naps and How Long
Three naps a day is the most common pattern at 5 months, though some babies still need four. It’s normal for your baby to bounce between three and four naps from day to day during this transition. Each nap can last anywhere from 30 minutes to 2 hours, with shorter naps being perfectly typical at this age. A “good” nap day adds up to roughly 2.5 to 4 hours of total daytime sleep.
If your baby is consistently taking four naps, they’re likely on the younger end of 5 months and still need shorter wake windows. As they approach 6 months and can stay awake for longer stretches, the fourth nap naturally drops off.
Wake Windows Between Naps
Wake windows are the stretches of time your baby stays awake between sleep periods, and getting them right makes a big difference in how easily your baby falls asleep. At 5 months, most babies do well with 1.5 to 2.5 hours of awake time between naps. Babies who still take four naps tend to be on the shorter end of that range, while babies on a three-nap schedule usually need 2 to 2.5 hours.
A practical example for a three-nap day looks like this:
- Before the first nap: about 2 hours of awake time
- Before the second nap: about 2.25 hours
- Before the third nap: about 2.25 hours
- Before bedtime: about 2.5 hours
Babies closer to 6 months may need up to 3 hours of awake time before bed. If your baby fights the last nap of the day, that’s often a sign they’re ready for a slightly longer wake window rather than an extra nap.
Signs Your Baby Is Ready for Sleep
Catching your baby’s sleepiness cues early makes it much easier to get them down. The earliest signs are subtle: yawning, droopy eyelids, staring into the distance, furrowed brows, or a slight frown. Physical cues include rubbing their eyes, pulling on their ears, sucking their fingers, or clenching their fists.
If you miss those early signals, your baby may start showing more obvious signs like fussiness, turning away from stimulation (the bottle, breast, lights, or sounds), clinginess, or a low, prolonged whine that never quite becomes a full cry. Some babies even sweat more when overtired because the stress hormone cortisol rises with exhaustion.
An overtired baby is harder to settle. They often cry louder and more frantically than usual, and paradoxically, they have a harder time falling asleep. This is why watching the clock alongside your baby’s behavior helps. If your baby’s wake window is approaching 2.5 hours and you see even a small yawn, it’s a good time to start the nap routine.
Setting Up a Safe Sleep Space
The American Academy of Pediatrics recommends placing babies on their backs in their own sleep space for every sleep, including naps. Use a crib, bassinet, or portable play yard with a firm, flat mattress and a fitted sheet. Keep the space clear of loose blankets, pillows, stuffed animals, bumpers, and any other soft items. Avoid letting your baby sleep on a couch, armchair, or in a swing or car seat (unless they’re actually riding in the car).
Room temperature matters more than many parents realize. The Lullaby Trust recommends keeping the room between 16 and 20°C (roughly 61 to 68°F). Staying in this range helps lower the risk of SIDS. If you leave the heat on overnight, keep it at or below 20°C. A good test: if the back of your baby’s neck or tummy feels warm but not sweaty, the temperature is likely right.
What a Typical Day Looks Like
Every baby is different, but a realistic day for a 5-month-old on a three-nap schedule might look something like this: wake around 7 a.m., first nap around 9 a.m., second nap around 12:30 p.m., a shorter third nap around 3:30 p.m., and bedtime between 7 and 8 p.m. Some days the naps will be 30 minutes, other days an hour or more. The total sleep across the day should land somewhere in the 12 to 16 hour range.
Don’t worry too much about hitting an exact schedule. Your baby’s sleep needs depend on their temperament, stage of development, and individual preferences. What matters most is that the overall amount of sleep falls within the recommended range and that your baby seems rested, alert, and content during their awake time. If your baby is consistently getting less than 12 hours or seems chronically fussy and hard to settle, adjusting wake windows or adding a nap may help.