Toddler Sleep Guide (12-24 Months)

Toddler sleep brings a new set of challenges. Your child now has opinions, willpower, and the physical ability to resist sleep more effectively than a baby ever could. The good news: with clear boundaries and a consistent approach, toddler sleep can be remarkably predictable once you get through the transitions and regressions of this age.

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Key takeaways

  • Total sleep needs: 12-14 hours (11-12 at night + 1.5-2.5 hour nap).
  • The 2-to-1 nap transition (14-18 months) is the hardest nap transition -- do not rush it.
  • The 18-month regression is driven by language, autonomy, and teething -- expect bedtime battles.
  • Keep your toddler in the crib until at least age 2.5-3 if possible (AAP recommendation).
  • Firm, consistent boundaries at bedtime are more effective than negotiation.
  • Early waking is usually a schedule issue (bedtime too late or nap too long) rather than an early riser.

Sleep needs at 12-24 months

  • Total sleep (24 hours): 12-14 hours
  • Nighttime sleep: 11-12 hours
  • Daytime sleep: 1.5-2.5 hours (1 nap after transition)
  • Wake windows (2 naps): 3-4 hours / 3.5-4 hours / 3.5-4 hours
  • Wake windows (1 nap): 5-5.5 hours before nap / 4.5-5.5 hours after nap
  • Bedtime: 7:00-8:00 PM (earlier during nap transition)
  • Night feeds: None needed (physiologically unnecessary after 12 months)

The 2-to-1 nap transition

This is widely considered the most challenging nap transition because the wake windows change dramatically and there is a long adjustment period. Most toddlers transition between 14 and 18 months.

How to transition to 1 nap

  1. Gradually push the morning nap later by 15 minutes every 2 to 3 days
  2. Target a single nap starting between 12:00 and 1:00 PM
  3. Cap the nap at 2 to 2.5 hours to protect bedtime
  4. Use an earlier bedtime (as early as 6:30 PM) during the transition to prevent overtiredness
  5. Expect the full transition to take 2 to 4 weeks to stabilize

During the transition, you may alternate between one and two nap days based on how your toddler slept the night before. A bad night or missed nap day may mean offering a two-nap day to catch up. Flexibility during this period is more important than rigid consistency.

Sample schedule: one nap (15-24 months)

  • Wake: 6:30-7:00 AM
  • Nap: 12:00-2:00 PM (5-5.5 hr wake window before, 1.5-2 hr nap)
  • Bedtime: 7:00-7:30 PM (5-5.5 hr wake window after)

Some toddlers do well with a slightly later nap (12:30-2:30) depending on wake time.

The 18-month regression

The 18-month regression is often the most challenging because your toddler now has the tools to truly resist: words, will, and physical ability. Common manifestations include:

  • Intense bedtime battles: Screaming, climbing out, throwing things, tantrums when you leave
  • Nap strikes: Refusing to nap for days or weeks at a time (still needs the nap though)
  • Night waking with calling out: "Mama! Dada!" repeatedly
  • Separation anxiety resurgence: Second peak of separation distress

This regression typically lasts 2 to 6 weeks. The key is maintaining firm boundaries while showing empathy. Acknowledge their feelings ("I know you want mama to stay") but maintain the limit ("It is sleep time now. I will see you in the morning").

Toddler sleep strategies

  • Offer choices, not control: "Do you want the blue pajamas or the red ones?" Choices give toddlers a sense of autonomy within your structure.
  • Use a routine chart: Visual charts showing each step of the bedtime routine help toddlers know what comes next and reduce resistance.
  • Address needs proactively: Offer water, a last potty trip, and one final hug as part of the routine -- so these cannot be used as stalling tactics later.
  • Comfort object: A special stuffed animal or blanket that stays in the crib provides comfort and helps with separation.
  • Consistent consequences: If your toddler throws things out of the crib, calmly return them once. After that, they stay out until morning. Be matter-of-fact, not emotional.

Crib climbing and the toddler bed question

Many toddlers attempt to climb out of the crib between 18 and 24 months. Before transitioning to a toddler bed, try these strategies to keep them safely in the crib longer:

  • Lower the mattress to the lowest setting
  • Use a sleep sack (restricts leg movement needed for climbing)
  • Turn the crib around so the higher side faces outward (if the crib design allows)
  • Remove any bumpers, toys, or items that give a foothold
  • Give a firm "no" if you catch them mid-climb (some toddlers respond to the limit)

If your toddler is regularly getting out despite these measures and you are concerned about a fall, it may be time to transition. Use a floor bed or toddler bed with a safety rail, and childproof the entire room since your toddler will now have unsupervised access to the space. A baby gate on the door is recommended for safety.

When to worry

Most toddler sleep challenges are behavioral and resolve with consistency. However, consult your pediatrician if:

  • Your toddler snores loudly or has pauses in breathing during sleep
  • They seem excessively tired during the day despite adequate sleep hours
  • Night terrors are occurring multiple times per week
  • Frequent head banging, rocking, or teeth grinding during sleep
  • Sleep problems persist for more than 6 weeks despite consistent behavioral interventions

Frequently asked questions

When should I switch from 2 naps to 1?
Most toddlers are ready to transition from 2 naps to 1 between 14 and 18 months. Signs of readiness include: consistently refusing one nap (usually the morning nap) for 2 or more weeks, taking a very long time to fall asleep for one nap, the morning nap pushing the afternoon nap too late, or night sleep being disrupted. Do not rush this transition based on a few bad days -- the 12-month regression can mimic readiness for one nap.
When should I move my toddler to a toddler bed?
The AAP recommends keeping children in a crib as long as possible -- ideally until age 3. The crib provides a contained, safe sleep space. The only reason to transition earlier is if your child is regularly climbing out and at risk of falling. If climbing occurs, lower the mattress to the lowest setting first and consider a sleep sack (which restricts leg movement for climbing). Only transition if the climbing cannot be stopped safely.
How do I handle my toddler's bedtime stalling tactics?
Toddlers are masters of stalling: one more book, one more hug, water, potty, scared. Address all legitimate needs before lights out (last drink, potty trip, one hug). Then set a firm boundary: 'Goodnight. I will see you in the morning.' Do not engage in lengthy conversations or return repeatedly. The silent return method (calmly walking them back without talking) is effective for toddlers who leave their bed. Consistency is critical -- if you cave sometimes, the stalling will intensify.
Is it normal for my 18-month-old to fight naps?
Yes, the 18-month regression commonly manifests as nap refusal. However, most 18-month-olds still need one nap until age 2.5 to 3.5 years. If your toddler suddenly refuses the nap, continue offering it at the same time daily. Many toddlers go through a 1 to 3 week 'nap strike' during this regression and then resume napping. Dropping the nap at 18 months typically leads to overtiredness and worse nighttime sleep.
My toddler wakes up at 5 AM. How do I fix this?
Early waking (before 6 AM) in toddlers is commonly caused by: bedtime too late (overtiredness causes early waking), too much daytime sleep (cap the nap at 2 hours and end by 3 PM), light entering the room at dawn, or the last wake window being too short. Try making the room darker, capping the nap, and experimenting with an earlier bedtime. A toddler clock that shows when it is 'okay to wake' can also help toddlers over 18 months stay in bed until an appropriate time.

Bottom line

Toddler sleep is largely a behavioral challenge. Your toddler has the physical and cognitive ability to resist sleep, and they will test your boundaries. The 2-to-1 nap transition (14-18 months) and 18-month regression are the two biggest hurdles. Success comes from maintaining consistent limits, keeping an age-appropriate schedule, offering choices within your structure, and keeping them in the crib as long as safely possible. Most toddler sleep problems respond well to consistency within 1 to 2 weeks.

Trust your instincts. If something feels wrong, reach out to your pediatrician. Worrying about your baby means you care — that is a good thing.

All content follows our editorial policy and is reviewed against published clinical guidelines.

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