Month-by-month sleep guide
3-Month-Old Sleep Schedule
- ⏰ Wake window: 75–105 minutes
- 🍼 Naps per day: 4–5
- 🌙 Bedtime: 7:30 PM
- 😴 Total sleep: 14–16 hours
Reviewed by the BabyNapCalc Editorial Team — our content is reviewed for accuracy against pediatric sleep guidance (AAP/NSF). This is general information, not medical advice.
Three months is when baby sleep starts to feel a little less random. Wake windows stretch to 75–105 minutes, many babies consolidate into 4–5 naps, and the first genuinely longer stretch of night sleep often appears — sometimes 5–6 hours right after bedtime. Total sleep is still a hefty 14–16 hours a day, but the pattern is starting to take shape.
3-month-old sleep at a glance
Typical ranges for 3 months — every baby is different, so treat these as a starting point.
75–105 min
Between sleep periods
First window usually shortest
4–5
4–5 naps
Morning naps often longest
14–16 h
Naps + night combined
Typical for this age
Sample 3-month-old schedule
An example day with a 7:00 AM wake, built from this month’s midpoint wake windows. Use the mini calculator above with your real wake time.
8:30 AM – 9:45 AM
Nap 1
About 75 minutes
11:15 AM – 12:30 PM
Nap 2
About 75 minutes
2:00 PM – 3:15 PM
Nap 3
About 75 minutes
4:45 PM – 6:00 PM
Nap 4
About 75 minutes
7:30 PM
Bedtime
End of the day
Longer windows and the first long night stretch
Three months brings the first real glimpses of a schedule. Melatonin production is maturing, daytime sleep is organizing into a loose pattern, and many parents get their first 5–6 hour stretch of night sleep. Total sleep of 14–16 hours still rules the day, but the pieces are visibly coming together.
Wake windows of 75–105 minutes
By three months, most babies comfortably manage about an hour and a quarter to an hour and three quarters awake. Morning windows still tend to run short — don't be surprised if the first nap comes barely 75 minutes after wake-up. The newborn wake window calculator is still handy at this age for pinning down nap timing.
The first long stretch of night sleep
This is the month many parents get their first 5–6 hour stretch, usually the first chunk of the night, because sleep pressure is highest right after bedtime. Night feeds (usually 1–2) are still completely normal — a 3-month-old's tummy can't go all night without refueling. A slightly earlier bedtime, around 7–8 PM, often lengthens that first stretch; the baby sleep calculator can help you find the right window.
Naps start to organize
The 4–5 naps of this month often fall into a loose pattern: longer naps in the morning, catnaps in the late afternoon. That late-afternoon catnap is doing important work — it bridges the gap to bedtime without letting your baby get overtired. If the last nap drifts past 6 PM, bedtime may need to shift a little later, or you can cap the catnap at 30–45 minutes. See the full progression in our wake windows by age guide.
Milestones that matter for sleep
Three-month-olds are cooing up a storm and holding their heads steadier, which makes tummy time more fun and daytime play more tiring in a good way. That extra daytime engagement is part of why night sleep consolidates: a baby who practices skills by day settles better at night. Coming next: the 4-month-old sleep schedule — and the famous regression that arrives with it.
3-month-old sleep questions, answered
Quick answers to the questions parents ask most about sleep at 3 months.
What is the wake window for a 3-month-old?
75–105 minutes. The first window of the day is usually shortest; the last window before bed can stretch toward the top of the range.
How many naps should a 3-month-old take?
Typically 4–5 naps. Morning naps are often the longest; a short late-afternoon catnap bridges the gap to bedtime.
When do babies start sleeping longer stretches at night?
Many babies manage a 5–6 hour first stretch around 3 months as melatonin production matures. Longer consolidated night sleep usually develops between 4 and 6 months.
What is a good bedtime for a 3-month-old?
Most do well between 7 and 8:30 PM. An earlier bedtime often produces a longer first stretch of night sleep.
This page is a planning guide based on general pediatric sleep guidance, not medical advice. Every baby is different — talk to your pediatrician with concerns about your baby’s sleep.