A 5-month-old should sleep about 12 to 16 hours in a 24-hour period. That total typically breaks down to 11 to 12 hours at night and 2.5 to 3.5 hours of daytime naps. Every baby is a little different, but if your 5-month-old is landing somewhere in that range, their sleep is on track.
Nighttime Sleep at 5 Months
By 5 months, most babies are capable of a longer consolidated stretch of sleep at night, usually in the range of 11 to 12 hours total. That doesn’t mean 11 to 12 hours of unbroken sleep. Waking once or twice for a feeding is still normal at this age. Breastfed babies in particular may continue needing night feeds well into the first year, while formula-fed babies can sometimes go longer stretches without eating.
If your baby was sleeping longer stretches and suddenly starts waking more often, developmental changes are a common culprit. Around 5 months, many babies are learning to roll over or beginning to push up, and these new physical skills can genuinely disrupt sleep for a week or two before things settle again.
How Naps Should Look
Most 5-month-olds take three to four naps per day. Short naps are extremely common at this age because babies can’t always connect one sleep cycle to the next during the day. A 30- to 45-minute nap is not a sign of a problem.
That said, the first two naps of the day often start to lengthen around 5 months, stretching to 1 to 1.5 hours. The later naps tend to stay shorter, sometimes just a quick catnap to bridge the gap to bedtime. If any single nap runs past 1.5 to 2 hours, it’s worth waking your baby so the rest of the day’s schedule stays intact and nighttime sleep isn’t pushed too late.
Wake Windows Between Naps
A wake window is the stretch of time your baby stays awake between sleep periods. At 5 months, that window is roughly 2 to 3 hours. The first wake window of the day is usually the shortest (closer to 2 hours), and the windows gradually lengthen as the day goes on. Before bedtime, most babies need about 2.5 to 3 hours of awake time, though some won’t tolerate a full 3-hour window until closer to 6 months.
Watching for tired cues helps you time naps before your baby becomes overtired. At this age, the signs include fussiness, clinginess, sudden crying, losing interest in toys, or a burst of hyperactive movement. Once a baby crosses into overtiredness, settling them to sleep becomes harder, not easier, so catching those early signals matters.
A Realistic Daily Schedule
There’s no single “right” schedule, but a typical day for a 5-month-old looks something like this:
- Morning wake-up: around 6:30 to 7:00 a.m.
- First nap: about 2 hours after waking, lasting 1 to 1.5 hours
- Second nap: about 2 to 2.5 hours after the first nap ends, lasting 1 to 1.5 hours
- Third nap: a shorter catnap of 30 to 45 minutes in the late afternoon
- Bedtime: roughly 2.5 to 3 hours after the last nap ends, usually between 7:00 and 8:00 p.m.
Some days will include a fourth short nap, especially if earlier naps were cut short. The goal is to land somewhere near 2.5 to 3.5 total hours of daytime sleep without pushing bedtime too late.
Sleep Safety at 5 Months
Five months is the age when many babies start rolling, which creates two important safety changes. First, if you’ve been swaddling, it’s time to stop. A baby who rolls while swaddled can’t use their arms to reposition, which increases the risk of suffocation. A wearable sleep sack with arms free is a safe alternative.
Second, remove any mobiles or hanging toys from the crib. Once babies begin pulling up or reaching, those items become a strangulation hazard. The safest crib setup is simple: a firm mattress with a fitted sheet and nothing else. No blankets, pillows, stuffed animals, bumper pads, or weighted products. Research consistently links these items to serious injuries from suffocation and entrapment.
When Sleep Totals Fall Outside the Range
If your baby is sleeping significantly less than 12 hours or more than 16 hours in a day, it’s worth paying attention but not necessarily alarming. Some babies are naturally on the lower or higher end. What matters more than hitting an exact number is whether your baby seems well-rested: alert and engaged during wake windows, feeding well, and gaining weight normally.
Persistent difficulty falling asleep, frequent overnight waking that’s getting worse rather than better, or a baby who seems exhausted even after a full night can point to something worth discussing with your pediatrician. But for most families, the variability from day to day is normal. A “bad nap day” followed by a great night of sleep is just how infant sleep works at this stage.