Sleep schedule
4 Months Old Sleep Schedule
Wake windows, nap times, and a realistic daily routine.
Quick reference
24-hour visual timeline
Sample 4 months old schedule
- 7:00 AM Wake + feed
- 8:45 AM Nap 1 Wake window: 105 min
- 10:00 AM Wake + feed
- 11:45 AM Nap 2
- 1:15 PM Wake + feed
- 3:00 PM Nap 3
- 4:15 PM Wake + feed
- 5:30 PM Catnap (30 min cap)
- 6:15 PM Wake + wind down
- 7:00 PM Bath + bedtime routine
- 7:30 PM Bedtime feed + sleep
- 11:00 PM Night feed
- 4:00 AM Night feed
These are realistic anchor times — not rules. Use your baby's sleepy cues and adjust.
What's developmentally happening at 4 months
The 4-month sleep regression is real and permanent. Around 15-18 weeks, sleep architecture matures: your baby now cycles through lighter sleep stages and briefly wakes between each one. If they can't fall asleep on their own, they may cry out for the same conditions that existed when they fell asleep. This is not a regression — it's a progression that never fully reverses.
Sleep at 4 months fundamentally changes. You're not doing anything wrong. What worked at 3 months (rocking, feeding, bouncing to sleep) may stop working. This is often when gentle sleep hygiene becomes more important: dark room, consistent routine, putting down drowsy but awake when possible. Night feeds are still needed — most 4-month-olds still wake 1-2 times to eat.
Common sleep challenges at this age
- Frequent night wakingsExpected right now. Partial wake-ups every 45-90 minutes as sleep cycles reorganize. Not a sign of hunger alone.
- Short naps (30-45 minutes)Classic 4-month regression symptom. Try to extend by going in quickly before the full transition, or ride it out — naps usually reorganize by 5-6 months.
- Rolling in the cribTotally safe once baby can roll both ways. Stop the swaddle completely.
- Early morning wakings (4-5 AM)Often means bedtime is too late or last nap is too long. Cap the late afternoon nap at 30-45 minutes.
- Bedtime battlesWake windows lengthen to 1.5-2 hours. An overtired baby is harder to settle than an undertired one.
Recent and upcoming transitions
What just changed
Sleep cycles have matured permanently; swaddle likely gone; 3-4 nap pattern emerging.
What's coming next
Around 5-6 months, the 3-to-2 nap transition begins. Wake windows will continue to lengthen.
When to talk to your pediatrician
Reach out if any of the following apply at 4 months:
- Not rolling at all and not passing 4-month milestones
- Not babbling or smiling
- Excessive arching or stiffness
- Any signs of dehydration during regression
Trust your instincts. If something feels off with your baby's sleep, breathing, feeding, or development, call your pediatrician. This page is not a substitute for medical care.
Common questions about 4 months sleep
How long should a 4 month old nap?
Naps are often 30-90 minutes and many are in the 30-45 minute range due to the regression. Total daytime sleep is usually 3-5 hours across 3-4 naps.
What time should a 4 month old go to bed?
Bedtime of 7:00-8:30pm works best. If the last nap ends after 5pm, aim for 12-hour night sleep calculated backwards from your desired wake time.
How many naps does a 4 month old need?
Most 4-month-olds take 3-4 naps. The fourth is often a short 'bridge' catnap that disappears by 5-6 months.
Why is my 4 month old waking up every hour?
Almost always the 4-month regression — sleep cycles have matured and baby may need help linking cycles. It usually takes 2-6 weeks. Feeding, consistency, and a dark room help.
Can I sleep train a 4 month old?
Most sleep-training methods are considered safe starting at 4-6 months with pediatrician approval. This is a personal decision, and gentler approaches (pick-up/put-down, bedtime routine reinforcement) are also valid options.