A 5-month-old typically sleeps about 14.5 hours in a 24-hour period, split between 11 to 12 hours at night and 2.5 to 3.5 hours of daytime naps. That total is spread across three naps during the day and one long stretch overnight, though most babies this age still wake at least once or twice at night.
Nighttime Sleep at Five Months
Most 5-month-olds sleep 11 to 12 hours overnight, but that doesn’t mean 11 to 12 hours of unbroken sleep. Waking for feeds and comfort during the first year is normal, and at five months many babies still need one or two nighttime feeds. Some babies start sleeping longer stretches of 5 to 8 hours before waking, while others continue waking every 3 to 4 hours. Both patterns fall within the normal range.
A bedtime between 7:00 and 8:00 p.m. works well for most babies this age, since it aligns with their natural sleep pressure after a full day of naps and activity. If your baby’s last nap ends around 4:30 or 5:00 p.m., a bedtime roughly 2 to 2.5 hours later keeps them from getting overtired.
How Many Naps and How Long
Three naps a day is the sweet spot at five months. The goal is 3 to 4 hours of total daytime sleep divided across those naps, though how that time breaks down varies quite a bit from day to day. One day might look like a 2-hour morning nap, a 1-hour midday nap, and a 30-minute late afternoon nap. The next day might be two 1.5-hour naps and a 45-minute catnap.
That third nap of the day tends to be the shortest, often just 30 to 45 minutes. It’s essentially a bridge to keep your baby from getting overtired before bedtime. If any single nap stretches past 2 hours, it’s worth waking your baby so the rest of the day’s sleep schedule stays on track.
Some babies at this age are still taking four shorter naps instead of three longer ones. That’s fine. The transition from four naps to three usually happens naturally between 4 and 6 months as wake windows get longer.
Wake Windows Between Naps
A 5-month-old can comfortably stay awake for about 2 to 3 hours between sleep periods. This is a noticeable jump from younger babies, who typically max out at 1.5 to 2 hours. Wake windows tend to get slightly longer as the day goes on: the first window after morning wake-up might be closer to 2 hours, while the window before bedtime stretches closer to 2.5 or 3 hours.
Watching your baby’s cues matters more than watching the clock. Rubbing eyes, yawning, fussiness, and staring off into space are reliable signals that your baby is ready for sleep. Pushing past these cues often backfires, because an overtired baby has a harder time falling asleep and staying asleep.
What a Typical Day Looks Like
There’s no single “right” schedule, but a common rhythm for a 5-month-old looks something like this:
- 7:00 a.m. Wake and feed
- 9:00 a.m. First nap (1 to 1.5 hours)
- 12:00 p.m. Second nap (1 to 1.5 hours)
- 3:30 p.m. Third nap (30 to 45 minutes)
- 7:00 p.m. Bedtime
Your baby’s version of this will shift depending on when they wake in the morning, how long each nap runs, and their individual temperament. The framework is more useful than the exact times. Aim for roughly 2 to 3 hours of awake time between each sleep period, three naps that add up to about 3 hours total, and a bedtime that lands 2 to 2.5 hours after the last nap ends.
The 4-to-5 Month Sleep Regression
If your baby was sleeping reasonably well and suddenly isn’t, you’re likely in the middle of a sleep regression. Around 4 months, babies undergo a permanent change in how their brains cycle through sleep stages. Instead of the simple two-stage sleep pattern of a newborn, they begin cycling through lighter and deeper stages the way older children and adults do. This transition creates more brief awakenings between cycles, and babies who haven’t yet learned to fall back asleep on their own will fully wake up at each transition.
The rough patch typically lasts a few days to a few weeks. It’s not something your baby is doing wrong. It’s a sign their brain is maturing. Babies at this age are also learning to roll, babble, and sit with support, and all of that neurological development can temporarily make sleep more fragmented.
Safe Sleep at This Age
The American Academy of Pediatrics recommends placing babies on their backs in their own sleep space for every sleep, including naps. The sleep surface should be a crib, bassinet, or portable play yard with a firm, flat mattress and a fitted sheet. Nothing else belongs in the sleep space: no loose blankets, pillows, stuffed animals, or bumper pads.
Falling asleep in a swing, car seat (when not traveling), or on a couch or armchair carries a higher risk, even if your baby seems comfortable. If your 5-month-old falls asleep somewhere other than their crib, moving them to a safe sleep surface is the safest choice. Many babies start rolling at this age. Once your baby can roll both ways on their own, you don’t need to reposition them if they roll onto their stomach during sleep, but always place them on their back to start.