Toddler Wake Windows: Sleep Schedules for 12–24Months

As your baby grows into a toddler, their sleep needs evolve. Wake windows lengthen dramatically, and many children shift from two naps to one. Keeping an eye on these longer windows helps prevent an overtired toddler and preserves those precious quiet hours at night.

toddler wake windows

Wake Window Ranges

Experts agree that wake windows increase steadily throughout the second year of life. Dr.HarveyKarp’s guide lists wake windows of 3–5hours for 11–14month olds and 4–6hours for 15–24month olds. Napper’s chart notes that toddlers aged 14–24months stay awake 4–6hours between sleep periods. Dr.Golly adds that by two years, children may handle 5–6hours between sleep.

AgeWake WindowNumber of Naps
12–14months3–4hoursUsually two naps (morning and afternoon). Some toddlers start resisting the morning nap.
15–18months4–5hoursTransition period from two naps to one. Watch for signs such as refusing one nap or taking longer to fall asleep at night.
18–24months4.5–6hoursMost toddlers are on a single midday nap lasting 1½–2hours.

Sample Schedules

12‑Month‑Old (Two Naps)

18‑Month‑Old (Transition to One Nap)

If your toddler begins skipping the morning nap or taking a long time to fall asleep at bedtime, it may be time to switch to one nap. Expect some days with two naps and some with one as you transition.

Activities for Toddlers

Transition Tips

Sources

  1. Happiest Baby outlines wake window ranges of 3–5hours for 11–14month olds and 4–6hours for toddlers 15–24months.
  2. Napper’s wake window chart shows that toddlers 14–24months typically stay awake 4–6hours between sleep periods.
  3. Dr.Golly’s guide indicates that 18‑month‑olds can handle 4.5–5hours of awake time and two‑year‑olds 5–6hours.