By Angelica Videla — Certified Baby and Toddler Sleep Consultant, London | Supporting families across the UK, Europe, US, and Australia
Quick Answer
Wake windows for a 5 month old are typically 1.5 to 2.5 hours. Most 5 month olds are transitioning from 4 naps to 3 naps, and wake windows are beginning to lengthen noticeably from the 4-month stage. Getting the timing right during this transition is important — too short produces short, poorly consolidated naps; too long produces an overtired baby who fights every sleep.
What are wake windows at 5 months?
At 5 months, your baby is emerging from the 4-month regression window and sleep is beginning to consolidate slightly. Wake windows are lengthening from the 1.5 to 2 hours of the 4-month stage toward the 2 to 2.5 hours that most 5 month olds can manage.
The 3-to-4 nap transition typically happens between 5 and 7 months. At 5 months, some babies are still on 4 naps while others have naturally moved to 3.
Wake window ranges at 5 months
First wake window: 1.5 to 2 hours
Middle windows: 2 to 2.25 hours
Final window before bed: 2 to 2.5 hours
Sample schedule for a 5 month old (3 naps)
7:00am — Wake and feed. 9:00–9:15am — Nap 1 (45–90 minutes). 10:30–11:00am — Wake from nap 1. 1:00–1:15pm — Nap 2 (45–90 minutes). 2:30–3:00pm — Wake from nap 2. 4:30–4:45pm — Nap 3 (30–45 minutes — catnap). 5:15–5:30pm — Wake from nap 3. 7:15–7:30pm — Bedtime.
The 3-to-4 nap transition at 5 months
Signs your 5 month old is ready to drop the 4th nap: the 4th nap is consistently being refused or is very short, bedtime is being pushed past 8pm because of the late nap, and your baby is managing the gaps between naps without becoming overtired.
Signs they still need 4 naps: they become clearly overtired without the 4th nap, bedtime is manageable at 7 to 7:30pm even with 4 naps, and the 4th nap is still being taken well.
Why this keeps being confusing at 5 months
The 3-to-4 nap transition at 5 months is one of the more confusing schedule changes because it does not happen cleanly. Some days 3 naps work perfectly; other days the baby needs a 4th. Inconsistency at this stage is normal and does not mean you are doing something wrong.
The most useful approach is to try 3 naps on days when the first two naps have gone well, and offer a 4th short nap (20 to 30 minutes) on days when the first two were short.
Frequently Asked Questions
What are the wake windows for a 5 month old?
Typically 1.5 to 2.5 hours. The first wake window is usually the shortest at around 1.5 to 2 hours, with windows extending slightly through the day.
How many naps does a 5 month old need?
Most 5 month olds are transitioning from 4 naps to 3. Some still need 4 naps, particularly earlier in the month. Total daytime sleep of 3 to 4.5 hours is typical.
When should a 5 month old go to bed?
Bedtime between 7pm and 8pm works for most 5 month olds.
My 5 month old fights every nap — what does that mean?
Nap resistance at 5 months is usually a wake window issue — either too long (overtiredness) or the aftermath of the 4-month regression still lingering.