A 6-month-old needs 12 to 16 hours of total sleep per 24-hour period, including naps. That range comes from the American Academy of Sleep Medicine and accounts for normal variation between babies. Most of that sleep happens at night, with the remainder spread across two or three daytime naps.
Nighttime Sleep vs. Daytime Sleep
At 6 months, babies typically sleep 10 to 12 hours overnight and another 2.5 to 3.5 hours during the day. The balance between night and day sleep shifts as your baby grows. A baby on the lower end of nighttime sleep (closer to 10 hours) often makes up for it with longer or more frequent naps.
By this age, most babies no longer need nighttime feedings for nutrition. UCSF Benioff Children’s Hospitals notes that while many 6-month-olds still wake to eat at night, they don’t need those calories to grow properly. Night waking at this stage is more often a habit than a hunger signal. That said, every baby is different, and some may still benefit from one overnight feed, especially if they’re smaller or were born early.
How Many Naps and How Long
Most 6-month-olds take three naps a day. The first two naps are the longer ones, ideally lasting 60 to 90 minutes each. The third nap is a shorter “catnap” of about 30 to 45 minutes, usually in the late afternoon. This third nap bridges the gap between the last long nap and bedtime so your baby doesn’t become overtired.
That said, 6 and 7 months is exactly when many babies start fighting that third nap. If your baby regularly resists it, skips naps entirely, or takes noticeably shorter naps than usual, they may be outgrowing the three-nap schedule. Another telling sign: consistently getting less than 10 hours of nighttime sleep on three naps. When that pattern emerges, dropping to two naps often helps consolidate and lengthen night sleep. To make the switch, your baby needs to comfortably stay awake for about 3 to 3.5 hours at a stretch, up from the 2 to 2.75 hours typical of a three-nap schedule.
Wake Windows at 6 Months
Wake windows are the stretches of time your baby stays awake between sleep periods. At 5 to 7 months, that window is roughly 2 to 4 hours, according to the Cleveland Clinic. The first wake window of the day is usually the shortest (closer to 2 hours after waking), and the last one before bedtime is the longest.
Pushing past the right wake window leads to overtiredness, which paradoxically makes it harder for babies to fall asleep. When a baby stays awake too long, their body releases stress hormones like cortisol and adrenaline that amp them up instead of calming them down. Signs your baby has crossed that threshold include louder, more frantic crying than usual, clinginess, visible fussiness, and sometimes even sweating. Catching the earlier, subtler sleep cues, like eye rubbing or staring off, helps you put your baby down before they hit that overtired wall.
Why Sleep Falls Apart Around 6 Months
If your baby was sleeping well and suddenly isn’t, you’re probably dealing with the 6-month sleep regression. It’s not a step backward. It’s a side effect of rapid development. Around this age, babies are learning to sit up, may be starting early crawling movements, and are often beginning to teethe. Their brains are also making a major cognitive leap: understanding object permanence, the realization that people and things still exist when they can’t see them. That’s why your baby suddenly protests when you leave the room at bedtime.
These disruptions are temporary. Most sleep regressions last two to six weeks. Keeping your routines consistent through this stretch, even when it feels pointless, helps your baby resettle faster once the developmental burst passes.
Teaching Independent Sleep
Six months is one of the most common ages to start sleep training, because by this point babies have developed an internal body clock (circadian rhythm) and are physically capable of longer stretches without food. Sleep training is simply the process of helping your baby learn to fall asleep on their own and reconnect sleep cycles without being rocked, fed, or held.
There’s no single correct method. Approaches range from very gradual (staying in the room and slowly reducing your involvement over days or weeks) to more structured (leaving the room and checking in at set intervals). The right fit depends on your baby’s temperament and what you can sustain consistently. What matters most isn’t the specific technique but the consistency: a predictable bedtime routine, a regular schedule, and the same response each night so your baby knows what to expect.
Safe Sleep Environment
The AAP’s safe sleep guidelines still apply at 6 months. Your baby should sleep on their back, on a firm flat mattress with only a fitted sheet. No blankets, pillows, stuffed animals, or crib bumpers. The sleep space should be their own, whether that’s a crib, bassinet, or portable play yard, and should not be a couch, armchair, or car seat (except during car travel).
If your baby has started rolling onto their stomach during sleep, you don’t need to keep flipping them back, as long as you always place them on their back initially. By 6 months, most babies have enough head and neck control that rolling during sleep is not a concern.