How Many Hours Should an 8-Month-Old Sleep?

An 8-month-old needs about 12 to 16 hours of total sleep per 24-hour period, including nighttime sleep and daytime naps. Most babies this age get around 10 to 12 hours at night and another 2 to 3 hours spread across two daytime naps.

How Daytime Naps Typically Look

By 8 months, most babies have settled into a two-nap pattern. Those two naps together usually total 2 to 3 hours. Some babies take two even naps of about an hour each, while others take a longer morning nap and a shorter afternoon one (or vice versa). Either pattern is normal as long as total daytime sleep stays in that 2 to 3 hour range.

The time your baby spends awake between sleep periods, often called a “wake window,” is just as important as the naps themselves. At 8 months, most babies do well with 2.25 to 3.5 hours of awake time between naps. The first wake window of the day tends to be the shortest, while the stretch between the last nap and bedtime is usually the longest, typically 2.75 to 3.5 hours. If your baby is fighting a nap or taking a long time to fall asleep, the wake window before it may be too short.

A Typical Daily Schedule

There’s no single “correct” schedule, but a representative day for an 8-month-old often follows this general rhythm:

  • Early morning: Wake and milk feed, possibly followed by breakfast solids.
  • Mid-morning: First nap after about 2.5 hours of awake time, lasting roughly 1 to 1.5 hours.
  • Midday: Lunch solids and milk feed, then playtime.
  • Early afternoon: Second nap, lasting roughly 45 minutes to 1 hour.
  • Late afternoon/evening: Dinner solids, milk feed, then a quiet winddown, bath, and bedtime routine.

Bedtime usually falls 2.75 to 3.5 hours after your baby wakes from that last nap. For most families, that puts bedtime somewhere between 6:30 and 8:00 p.m., depending on when the day started and how naps went.

Night Feedings at 8 Months

Many 8-month-olds are ready to drop nighttime feedings entirely, though this varies by feeding method. Formula-fed babies often need zero to one feeding per night at this age, and many have already stopped waking to eat. Breastfed babies may still need zero to three feedings overnight, partly because breast milk digests faster.

Experts generally suggest that weaning off night feeds can happen around 8 to 9 months if your baby is eating enough calories during the day through a combination of milk and solid foods. This isn’t a hard rule. Some babies naturally stop waking for food on their own, while others need a more gradual transition. The key indicator is whether your baby is getting sufficient nutrition during daytime hours.

The 8-Month Sleep Regression

If your baby was sleeping well and has suddenly started waking more at night, resisting naps, or seeming restless, you may be dealing with a sleep regression. At 8 months, several developmental changes can converge to disrupt sleep:

  • Physical milestones: Crawling, pulling to a stand, and other new motor skills can make babies restless. Some will literally practice standing in the crib instead of sleeping.
  • Separation anxiety: Emotional development around this age makes babies more aware of when a caregiver leaves the room, which can trigger difficulty falling asleep alone or more frequent night waking.
  • Teething: Many babies are cutting teeth at 8 months, leading to fussiness and discomfort that peaks at night.
  • Overstimulation: Greater environmental awareness means your baby is absorbing more during the day, which can make it harder to wind down.

Sleep regressions are normally short-lived. They can feel endless in the moment, but most resolve within a few weeks as your baby adjusts to their new abilities and developmental stage. Sticking with consistent sleep routines during this period helps more than introducing new habits you’ll need to undo later.

Signs Your Baby Is Getting Enough Sleep

The 12 to 16 hour recommendation is a range, not a target. Some 8-month-olds genuinely need closer to 12 hours while others need the full 16. Rather than fixating on a number, pay attention to your baby’s behavior during awake periods. A well-rested baby is generally alert, engaged, and able to play happily for the length of their wake window without melting down. Frequent crankiness, rubbing eyes constantly, or falling asleep in the car within minutes of leaving the house can signal insufficient sleep.

If your baby consistently sleeps less than 12 hours in a 24-hour period and seems irritable or overtired, adjusting wake windows or moving bedtime earlier by 15 to 30 minutes is a reasonable first step. Small changes often have a bigger effect than overhauling the entire schedule at once.