1. What Is the 20-Month Sleep Regression?

At 20 months, toddlers often experience a temporary disruption in sleep due to:

• Developmental leaps—learning new words, climbing, and testing independence.
• Separation anxiety—your toddler may suddenly need extra reassurance.
• Nap resistance—some toddlers fight naps as they become more active.

This regression typically lasts 2-6 weeks but can vary depending on your toddler’s temperament and routine.

 

 

 

 

2. Signs & Symptoms of the 20-Month Sleep Regression

If your toddler’s sleep has suddenly changed, look for these common signs:

Nighttime Sleep Issues

• 20-month-old won’t sleep through the night—waking frequently or needing more comfort.
• Night wakings & disruptions—more crying, calling for you, or restlessness.
• Fighting bedtime—delaying tactics, tantrums, or refusal to go to sleep.

Nap Issues

• 20-month-old refusing naps—especially the second nap.
• Short naps or nap regression—waking too soon and unable to resettle.

Tip: Stick with a consistent routine to help your toddler through this phase.

 

 

3. Sleep Issues & Challenges

 

Not Sleeping Through the Night

 

Many toddlers at this age start waking up again at night, even if they were previously sleeping well. If your 20-month-old is waking up at night, check for:

✔ Overtiredness—too much wake time before bed.

✔ Hunger—some toddlers still need a bedtime snack.

✔ Separation anxiety—needing extra comfort before sleep.

 

Fighting Bedtime & Naps

 

If your 20-month-old is fighting sleep, they may be:

• Testing limits—this age is all about asserting independence.
• Under-tired—wake windows might need adjusting.
• Overstimulated—too much excitement before bed can make it harder to settle.

Tip: Keep bedtime calm and predictable—dim the lights, read a book, and avoid screen time.

 

4. Causes & Duration of the 20-Month Sleep Regression

 

The 20-month sleep regression is often caused by:

• Separation anxiety—toddlers at this age may fear being left alone.
• Nap transitions—some toddlers may start resisting naps, but don’t drop them yet!
• Increased activity—toddlers are more mobile and engaged, making it harder to wind down.
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How Long Does the 20-Month Sleep Regression Last?

 

This regression typically lasts 2-6 weeks, but consistency is key to getting back on track.

 

5. Sleep Schedules & Routine

 

Keeping a structured sleep schedule can help reduce sleep struggles.

 

Sample 20-Month-Old Sleep Schedule

• Wake-up: 6:30 – 7:30 AM
• Nap: 12:30 – 2:30 PM
• Bedtime Routine: 6:30 – 7:00 PM
• Bedtime: 7:00 – 7:30 PM

Tip: Stick to wake windows of 5-6 hours before the nap and bedtime.https://sleeplady.com/baby-sleep/wake-windows-by-age/

 

6. Solutions & Coping Strategies

 

How to Help Your Toddler Through the 20-Month Sleep Regression

 

• Stay Consistent—Keep bedtime, naps, and wake-up times the same.
• Offer Reassurance—If separation anxiety is an issue, spend extra time together before bed.
• Adjust Wake Windows—Try 5-6 hours of awake time before naps and bedtime.
• Encourage Independent Sleep—Use gentle sleep coaching if needed.

 

💡 Remember: This phase will pass! Stay patient, and your toddler will return to better sleep soon.

 

Final Thoughts

The 20-month sleep regression can be challenging, but it’s a normal part of development. Stick to your routine, be patient, and offer comfort when needed. Your toddler will get back to sleeping well!