An 8-month-old typically needs 2 to 3 hours of total daytime sleep, spread across two or three naps. Most babies this age are either already on a two-nap schedule or in the process of dropping their third nap, which changes how long each individual nap lasts and when it happens.
Total Daytime Sleep at 8 Months
The National Sleep Foundation recommends that infants ages 4 to 11 months get 12 to 15 hours of total sleep per 24-hour period. Since most 8-month-olds sleep roughly 10 to 12 hours at night, that leaves 2 to 3 hours for daytime naps. Some babies land on the higher end, some on the lower end, and both are normal as long as your baby seems rested and isn’t fighting bedtime.
How Many Naps and How Long Each One Lasts
Most 8-month-olds take two or three naps per day. On a two-nap schedule, you can expect a morning nap and an afternoon nap, each lasting roughly 60 to 90 minutes. On a three-nap schedule, the first two naps tend to be longer (around 45 to 75 minutes), and the third is a shorter catnap of 20 to 30 minutes that bridges the gap to bedtime.
If your baby is still on three naps, the third one is usually the first to go. This transition commonly happens between 7 and 9 months, so your 8-month-old may be right in the middle of it. The goal is to eventually consolidate that daytime sleep into two solid naps rather than three shorter ones.
Signs Your Baby Is Ready for Two Naps
Not every 8-month-old is on the same schedule, and pushing the transition too early can backfire. Look for a pattern of these behaviors over a week or two before making the switch:
- Resisting the third nap. Your baby plays, babbles, or fusses instead of falling asleep.
- Skipping naps entirely without seeming overtired.
- Taking shorter naps than usual across the board.
- Night sleep disruptions. If your baby is regularly getting less than 10 hours of sleep at night while on three naps, dropping to two often helps lengthen nighttime stretches.
- Early morning waking or long periods of wakefulness in the middle of the night.
One or two off days don’t mean it’s time to change the schedule. Wait until you see a consistent pattern before dropping that third nap for good.
Wake Windows Between Naps
Wake windows, the stretches of awake time between sleep periods, matter just as much as nap length. At 8 months, typical wake windows range from about 2 hours 15 minutes to 3 hours 30 minutes, and they get progressively longer throughout the day.
A common pattern looks like this: roughly 2 hours 15 to 30 minutes of awake time before the first nap, 2.5 to 3 hours before the second nap, and 3 to 3.5 hours before bedtime. That longest stretch before bed is intentional. It builds enough sleep pressure for your baby to fall asleep more easily at night and stay asleep longer.
If your baby consistently can’t make it to the next nap without melting down, the wake window may be too long. If they’re lying in the crib wide awake and cheerful for 20 minutes, it may be too short. Adjusting by 15-minute increments over a few days is a practical way to fine-tune the schedule.
When Naps Are Too Long or Too Late
There’s no hard cap on individual nap length for most babies this age. Mayo Clinic’s general guidance is to let babies nap as long as they want unless it starts interfering with nighttime sleep. In practice, that interference usually shows up in two ways: difficulty falling asleep at bedtime or more frequent night wakings.
Late afternoon naps are the most common culprit. If your baby is still taking a third nap that pushes past 4:00 or 4:30 p.m., it can compress the time between the last nap and bedtime, making it harder for your baby to feel tired enough to sleep. Cutting this nap by around 9 months, or even earlier if bedtime is becoming a battle, often resolves the issue. You may need to move bedtime earlier temporarily while your baby adjusts to the longer final wake window.
The 8-Month Sleep Regression
Around 8 months, many babies hit a rough patch with sleep that coincides with a burst of development. Crawling, pulling to stand, sitting independently, and teething can all happen in this window. These milestones create a kind of restlessness that makes it harder for babies to settle down, even when they’re tired.
During this regression, you might notice your baby fighting naps, waking more at night, or flipping the script entirely by taking longer daytime naps and sleeping less at night. This shift is temporary, typically lasting two to six weeks. The most helpful thing you can do is keep nap timing and bedtime consistent. Babies tend to return to their previous sleep patterns once the developmental surge levels off, as long as the overall routine hasn’t changed dramatically in the meantime.
If your baby suddenly starts practicing crawling or standing in the crib instead of sleeping, giving them plenty of floor time to work on those skills during wake windows can help reduce the novelty factor when it’s time to nap.