A 5-month-old typically needs 12 to 16 hours of total sleep per day, split between nighttime sleep and daytime naps. Most babies this age get around 10 to 11 hours at night (with wake-ups) and another 3 to 3.5 hours spread across daytime naps.
Total Sleep in 24 Hours
The 12-to-16-hour range covers the full spectrum of normal for babies between 4 and 12 months old. That’s a wide window, and where your baby falls depends on their temperament, feeding patterns, and how quickly they settle back to sleep after waking. A baby who consistently lands around 13 or 14 hours is right in the middle of the range, and there’s no reason to push for more if they seem rested and alert during wake times.
What Nighttime Sleep Looks Like
Most babies are capable of sleeping 6 to 8 hours without waking by the time they’re 3 months old, so at 5 months, longer stretches at night are common. That said, “sleeping through the night” rarely means an unbroken 11-hour block. Many 5-month-olds still wake once or twice, especially if they’re breastfed. Breastfed babies often continue needing overnight feeds until around 12 months, while formula-fed babies may drop night feeds closer to 6 months.
A realistic picture of nighttime sleep at this age: your baby goes down between 6:30 and 8:00 p.m., sleeps a long initial stretch of 5 to 8 hours, wakes for a feed, then sleeps again until early morning. Some babies add a second wake-up, particularly during growth spurts or when they’re working on new skills like rolling.
Naps During the Day
Three naps per day is the sweet spot at 5 months. The goal is roughly 3.5 hours of total daytime sleep spread across those naps. Some days all three naps land in the 1 to 1.5 hour range. Other days, the first two naps run longer and the third shrinks to a short 20-to-30-minute catnap, usually in the late afternoon. That third nap exists mainly to bridge the gap between the last long nap and bedtime, so it doesn’t need to be lengthy.
If your baby fights the third nap entirely some days, that’s an early sign they may be starting the transition to two naps, though most babies don’t fully drop to two naps until closer to 7 or 8 months.
Wake Windows Between Naps
At 5 months, most babies handle about 2 to 3 hours of awake time between sleep periods. That includes feeding, playing, diaper changes, and the wind-down before the next nap. Keeping wake windows in this range helps prevent overtiredness, which paradoxically makes it harder for babies to fall asleep and stay asleep.
Wake windows tend to be shorter in the morning and longer as the day goes on. A baby who wakes at 7:00 a.m. might be ready for a first nap by 8:30 or 9:00, but can stay up a full 2.5 to 3 hours before the afternoon nap. Watch for sleepy cues like eye rubbing, yawning, or turning away from stimulation rather than following a rigid clock.
Why Sleep Can Get Rocky at 5 Months
Around this age, some parents notice their baby’s sleep suddenly gets worse after weeks of improvement. About 30 percent of parents of 5-month-olds report more frequent night wakings during this period. Several things can cause disruptions at once: early teething, learning to roll over, increased awareness of their surroundings, and the natural maturation of sleep cycles that makes brief wake-ups between cycles more noticeable.
It’s not always obvious in the moment whether a rough night is caused by a developmental leap, a tooth pushing through, or the start of a cold. If your baby is feeding well during the day, doesn’t have a fever, and isn’t tugging at their ears, the disruption is likely developmental and tends to resolve within a week or two without any intervention beyond patience and consistent routines.
Sleep Training at 5 Months
Five months falls squarely in the window that most pediatric sleep experts consider appropriate for sleep training, typically between 4 and 6 months. By this age, most babies can physically go about 6 hours between feeds overnight, which means night wakings are increasingly about habit and comfort rather than hunger.
Several approaches work well at this age:
- Gradual check-ins: You leave the room and return at increasing intervals to briefly reassure your baby without picking them up. This works well for babies 4 months and older.
- Fading: You slowly reduce the amount of help you provide at bedtime over days or weeks. This is a gentler option often used for babies around 5 to 8 months.
- Pick up, put down: You pick your baby up when they cry, calm them, then put them back down awake. This is more hands-on and suits parents who want to stay physically involved.
No single method is superior. The one that works is the one you can follow consistently for at least a week. Sleep training also doesn’t have to be all or nothing. Some families only work on bedtime first and continue offering night feeds for a few more months.
Safe Sleep Basics
Regardless of schedule, the American Academy of Pediatrics recommends placing babies on their backs in their own sleep space for every sleep, including naps. The surface should be firm and flat with a fitted sheet and nothing else: no blankets, pillows, stuffed animals, or bumper pads. Avoid letting your baby sleep in swings, car seats (outside the car), or on couches, even if they fall asleep there naturally. These guidelines apply through the entire first year.