The transition from 2 naps to 1 is one of the most significant schedule shifts of the first two years — and one that catches many parents off guard when it happens earlier than expected. Here's how to know when your baby is ready and how to make the transition without weeks of sleep chaos.
When Is the Right Time
Most babies are developmentally ready to transition from 2 naps to 1 nap between 14 and 18 months, with an average around 15–16 months. Some babies show readiness as early as 12 months; others hold onto 2 naps until 18 months or later. The key is readiness signals, not calendar age.
Signs Your Baby Is Ready
Consistently resisting one of the two naps — usually the afternoon nap — despite being awake for a normal interval before it. Napping well for both naps but then being unable to fall asleep at their usual bedtime. Waking very early in the morning despite normal nap and bedtime timing. One nap has shrunk to 20 minutes or less despite a normal wake window preceding it.
What Makes It Hard
The 2-to-1 nap transition creates a period of overtiredness that typically lasts 2–6 weeks. Your baby is suddenly carrying a much longer awake window than before, and their body takes time to consolidate sleep into the single, longer midday nap that characterises the toddler stage. Behaviour and mood often deteriorate during this window — this is temporary.
How to Do the Transition
Move the first (morning) nap gradually later — by 15–30 minutes every few days — until it shifts to a midday position (typically 12pm–12:30pm for a 7am waker). Once the single nap is consistently at midday, it will usually extend to 1.5–3 hours over 2–3 weeks as your baby's body adapts to the longer morning wake window. Bring bedtime earlier by 30–60 minutes during this transition period — overtired toddlers need an earlier bedtime, not a later one.
The Cap and Drop Method
An alternative approach: cap the morning nap at 45 minutes for 1–2 weeks, then reduce to 30 minutes, then 20, then eliminate it. This keeps your baby from getting so much morning sleep that afternoon sleep becomes impossible, while gradually shifting the sleep load to later in the day.
Protecting the Single Nap
Once established, the single midday nap is one of the most precious commodities of the toddler period. Protect it: don't schedule activities across nap time; maintain the pre-nap routine that your baby associates with sleep; keep the nap environment consistent (dark, cool, white noise). The single nap can last well into the 3rd year for many children.
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