Dropping the third nap (3 to 2 transition)

The third nap is the catnap. Forty minutes in the stroller, in the carrier, in the car seat on the drive home from daycare. Just enough to take the edge off and let baby make it to bedtime without melting down.

Until one day it stops working. Baby fights it. Or takes it and then can't fall asleep at 7 PM. Or takes it and wakes at 5 AM the next morning. The 3-to-2 transition has started.

When the transition usually happens

The American Academy of Pediatrics, pediatric sleep researchers, and the actual experience of sleep consultants align on roughly the same window: 6 to 9 months, with 7.5 months as the median.

Babies whose 3-naps held longer (closer to 9 months) tend to be:

• Earlier wakers (5:30 to 6:00 AM mornings).
• Light nappers (45-minute first and second naps).
• Born early (adjust for prematurity).

Babies who drop the third nap earlier (around 6 months) tend to be:

• Strong nappers (90+ minute first and second naps).
• Later wakers (6:30 to 7:00 AM mornings).
• High sleep needs at night (11+ hours).

If you're inside 6 to 9 months and seeing signs, you're on time. If your baby is 10 months and still doing 3 naps, the transition may be coming but isn't urgent.

The 4 signs the third nap needs to go

1. The third nap pushes bedtime too late

If baby takes a catnap at 4 PM, they wake at 5 PM, and now you're trying to do bedtime at 7 PM with 2 hours of awake time. They're wired. They won't fall asleep. Bedtime stretches to 8:30. This is the most common sign.

2. Bedtime resistance with no other cause

Baby suddenly takes 45 minutes to fall asleep at the usual bedtime. Nothing else has changed. The third nap is giving them just enough sleep to push the sleep pressure off until 8 PM.

3. Early-morning wakings

Baby starts waking at 5 AM after months of 6:30 mornings. This is sometimes confused with the 8/9/10 month sleep regression, but if it correlates with continued catnaps, the third nap is the more likely culprit.

4. Baby just refuses to nap

You put baby down for the third nap, they play in the crib for 20 minutes, then cry. Repeat for 3 days. They've signaled they're done.

Any one of these signs lasting 4 to 7 days = time to drop the third nap.

The 2-nap schedule by age

The 2-nap schedule typically lands at:

• First nap (morning): Starts 2 to 2.5 hours after waking. Around 9:00 to 9:30 AM if baby wakes at 6:30 to 7:00.
• Second nap (afternoon): Starts 3 to 3.5 hours after the end of first nap. Around 1:00 to 1:30 PM.
• Wake window from last nap to bedtime: 3 to 3.5 hours. Aim to end nap by 3:30 PM at the latest.
• Bedtime: 6:30 to 7:00 PM.

Total daytime sleep on a 2-nap schedule is usually 2.5 to 3.5 hours. If you're getting less than 2.5 total, baby isn't quite ready and may need 3 naps a little longer.

The bridge week (transition schedule)

Don't drop the third nap cold-turkey on day one. Bridge for a week.

Days 1–3: Keep all 3 naps but make the third short. Cap at 20 to 25 minutes. Use a stroller walk, a drive, or motion in the carrier so baby gets the rest but not enough to ruin bedtime.

Days 4–7: Drop the third nap entirely on most days. Bring bedtime earlier — 6:00 to 6:15 PM — to compensate for the extra wake time. This is the rough patch. Baby will be tired. You will too.

Days 8–14: Lock in the 2-nap schedule. Bedtime moves back to 6:30 to 7:00 PM as wake windows lengthen.

By day 14: The new schedule should feel settled. If not, baby may have needed 3 naps longer than you thought. Add the catnap back for another 1 to 2 weeks and try again.

The hardest part: the last wake window

On a 2-nap schedule, the wake window from the end of nap 2 to bedtime is 3 to 3.5 hours. For a 7-month-old who's been doing 2-hour wake windows, this is a stretch.

Signs your baby isn't ready for the long last wake window yet:

• Cries inconsolably in the last hour before bed.
• Falls asleep during dinner.
• Bedtime is a complete meltdown.

The fix: shift the second nap later (1:30 to 2:00 instead of 1:00) and bring bedtime earlier (6:00 to 6:15 PM). This is your "split bedtime" period. It lasts 2 to 4 weeks until baby's wake-window capacity catches up.

Why bedtime falls apart for a week

During the transition, baby is undersleeping for a few days while their body adjusts. Overtiredness builds. Bedtime gets harder before it gets easier.

The fix isn't more sleep training. The fix is an earlier bedtime, even if it feels too early.

• Normal bedtime: 7:00 PM.
• Transition bedtime: 6:00 to 6:15 PM for 7 to 14 days.
• Back to normal: 6:45 to 7:00 PM once baby is rested.

The 6 PM bedtime feels weird. Your baby is in pajamas while the sun is still up. Your evening is over. But it works. Once the schedule stabilizes, you can creep bedtime back to 6:45 or 7:00.

What if my baby still seems tired without the third nap?

They will be. For about a week. That's the adjustment period. The fix isn't to add the third nap back — it's to:

• Bring bedtime earlier (6:00 to 6:15 PM).
• Make sure both daytime naps are full (over an hour if possible).
• Add 15 minutes to the second nap by going in and re-soothing if baby wakes early.

If after 14 days baby is still chronically overtired (5 AM wakings, hour-long bedtime battles, daytime fussiness all day), they weren't ready. Go back to 3 naps for 2 to 3 weeks and try again.

Daycare and the 3-to-2 transition

If baby is in daycare, the transition has different mechanics. Most daycares have set nap rooms with set nap times. They aren't going to do a third nap. So the catnap usually ends in the car or stroller on the way home.

When you're ready to drop it:

• Talk to daycare. Some will extend afternoon nap by 15 to 30 minutes if you ask.
• Bedtime moves to 6:00 PM on daycare days.
• Weekend home days follow the 2-nap schedule above.

The biggest challenge with daycare: short naps. If daycare naps total only 90 minutes, baby is undersleeping by an hour every day. Compensate with a 6 PM bedtime and protect weekend nap recovery.

The 2-nap window (how long it lasts)

Once baby is fully on 2 naps, the next transition (2 to 1) is usually 6 to 8 months away. Most babies drop to 1 nap between 14 and 18 months. Your 7-month-old who just dropped to 2 naps will likely stay there for the next year.

So even though the transition feels disruptive, you're settling into the longest sleep phase of the first year. Enjoy it.