The 2-to-1 nap transition

The move from two naps to one is usually a gradual overlap, not a switch that happens on one exact birthday.

Common signs

• The second nap is repeatedly refused or starts very late.
• A successful second nap regularly pushes bedtime too late.
• One-nap days sometimes work without an exhausted late afternoon.
• The first nap naturally shifts later.

Signs it may be too early

• The baby cannot comfortably reach a midday nap.
• One-nap days repeatedly require extremely early bedtime.
• Night sleep or early waking becomes noticeably worse.
• Two naps still work well on many ordinary days.

Use both rhythms during the overlap

It is reasonable to use two naps on recovery days and one nap on days when the morning window extends comfortably. Lulla’s Plan view compares both patterns for ages where both may be plausible.