A 5-month-old typically needs three naps a day, totaling about 3 to 4 hours of daytime sleep. Combined with nighttime sleep, most babies this age need 12 to 16 hours of sleep in a 24-hour period. That said, every baby is different, and the “right” schedule depends on your baby’s cues, wake windows, and how well they’re sleeping at night.
Total Daytime Sleep and Nap Count
At 5 months, three naps is the standard. Those naps should add up to roughly 3 to 4 hours spread across the day. The first two naps tend to be longer, while the third nap is often a short catnap of about 30 to 45 minutes. It’s also a good idea to cap any single nap at around 2 hours so your baby still has enough sleep drive for bedtime.
If your baby was recently on four naps, the transition to three typically happens between 4 and 5 months. Signs your baby is ready to drop that fourth nap include regularly refusing or fighting the last nap, having trouble falling asleep at bedtime, waking shortly after being put down for the night, or needing a bedtime pushed past 8:00 PM just to squeeze the extra nap in. Early morning wakings that happen almost every day can also signal it’s time.
Wake Windows Between Naps
Wake windows, the stretches of awake time between sleeps, are one of the most useful tools for figuring out when your baby is ready for a nap. At 5 months, most babies do well with 2 to 3 hours of awake time between naps. The first wake window of the day is usually the shortest, and the last one before bed is usually the longest.
A typical day might look something like this: wake up around 7:00 AM, first nap about 2 hours later, second nap in the early afternoon, a short third nap in the late afternoon, and bedtime between 7:00 and 8:00 PM. But these times are flexible. The wake windows matter more than the clock.
How to Spot When Your Baby Is Tired
Watching for sleepy cues is more reliable than sticking rigidly to a schedule. Early signs of tiredness include yawning, staring off into the distance, droopy eyelids, and furrowed brows. Your baby might also rub their eyes, pull at their ears, or start sucking their fingers.
As tiredness builds, you’ll notice fussiness, clinginess, and a loss of interest in toys or surroundings. Some babies do a kind of prolonged whine (sometimes called “grizzling”) that never quite turns into full crying. If your baby turns away from the bottle, breast, or other stimulation, that’s a strong signal they’re ready for sleep.
The goal is to catch these cues before your baby becomes overtired. When babies pass the window and get too tired, their bodies release a surge of cortisol and adrenaline that actually makes it harder for them to settle. Overtired babies tend to cry louder and more frantically, may sweat more, and paradoxically seem wired instead of sleepy. If you’re consistently seeing this, try shortening the wake window by 15 to 20 minutes.
Why Naps May Be Unpredictable Right Now
Five months is a busy time developmentally. Your baby is likely learning to roll, reaching and wriggling more, possibly sitting with support, and starting to babble with sounds like “baba” or “gaga.” All of this mental and physical growth can temporarily disrupt sleep. A baby who was napping well might suddenly fight naps or wake after one short sleep cycle. This is normal and usually passes within a week or two as the new skill becomes less exciting.
Sleep cycles also play a role. Babies this age have shorter sleep cycles than adults, typically around 45 to 60 minutes, and they spend more time in lighter, active sleep (similar to REM sleep in adults). That means they wake more easily between cycles. Some babies connect cycles on their own and sleep for longer stretches. Others wake at the 30- or 45-minute mark consistently. Short naps are frustrating but common at this age and don’t necessarily mean something is wrong.
Safe Nap Setup at 5 Months
Always place your baby on their back for naps in their own sleep space: a crib, bassinet, or portable play yard with a firm, flat mattress and a fitted sheet. Keep the space clear of blankets, pillows, stuffed animals, and bumper pads.
Rolling changes the picture. Most babies start rolling between 4 and 6 months, and once yours shows any signs of rolling, it’s time to stop swaddling. A wearable sleep sack with arms free is a safe alternative. Continue putting your baby down on their back, but if they can roll confidently in both directions (back to front and front to back), you can let them find their own sleeping position. If your baby can only roll one way, gently turn them back onto their back whenever you notice they’ve flipped. Avoid any positioning devices marketed to keep babies in a certain sleep position, as these are not recommended and can be dangerous.
When Naps Don’t Follow the Textbook
Some 5-month-olds take three solid naps. Others take two decent naps and a third that barely lasts 20 minutes. Some still seem to need four short naps. The ranges exist because babies develop on their own timeline. If your baby is generally content when awake, sleeping reasonably well at night (even with a feeding or two), and growing normally, their nap pattern is likely fine even if it doesn’t match a sample schedule exactly.
What matters more than perfection is consistency in the basics: a dark, quiet sleep environment, a brief wind-down routine before naps (even just a minute of rocking or a short book), and responding to your baby’s individual cues rather than forcing a rigid clock-based schedule. Over the next few weeks, as wake windows naturally lengthen, the rhythm tends to become more predictable on its own.