The 4-Year-Old Sleep Regression

Begin the Transition from Co-Sleeping

What Is the 4-Year-Old Sleep Regression?

At 4 years old, children often experience a temporary disruption in sleep, commonly due to:

  • Developmental leaps—Expanding imagination, new fears, and growing independence.
  • Separation anxiety—Your child may suddenly need more reassurance.
  • Bedtime resistance—They may stall, delay, or suddenly fight going to bed.

While this regression can be frustrating, it’s a normal part of development. Your child is learning new skills and testing boundaries, which can spill over into sleep.

Signs & Symptoms of the 4-Year-Old Sleep Regression

Nighttime Sleep Struggles

  • 4-year-old won’t sleep—Suddenly resisting bedtime, even if they were a great sleeper before.
  • Frequent night wakings—More restless sleep or waking up and calling for you.
  • Asking for extra comfort—More requests for one more hug, drink, or story before bed.

Separation Anxiety & Fear of Sleeping Alone

  • 4-year-old suddenly scared to sleep alone—Fear of the dark, monsters, or being alone.
  • Needing a parent to stay—Wanting you to sit with them or sleep in their bed.

Tip: Reassure your child but set clear boundaries—staying in their room all night won’t help them learn to sleep independently.

 

Common Sleep Issues at 4 Years Old

Not Sleeping Through the Night

If your child was previously sleeping through the night but suddenly isn’t, it could be due to:

  • Overtiredness—If bedtime is too late or naps have been dropped too soon.
  • Increased imagination—Nighttime fears and bad dreams are more common at this age.
  • Seeking attention—Children test limits by calling for parents at night.

Tip: If your child wakes up at night, respond calmly and quickly—but avoid engaging in long conversations or extra bedtime routines.

Frequent Wakings & Sleep Disruptions

  • Your 4-year-old keeps waking up at night and coming into your room.
  • They may be having bad dreams or night terrors.
  • Changes in routine (starting school, new sibling, etc.) can trigger sleep disruptions.

Tip: Offer comfort, but avoid creating new habits—like letting them sleep in your bed—that could extend the regression.

Bedtime Resistance & Stalling Tactics

Many 4-year-olds become masters of delay tactics at bedtime.

  • More requests for snacks, water, bathroom trips, or one more story.
  • Engaging in deep bedtime conversations (“Why is the sky blue?”).
  • Suddenly needing more cuddles and comfort.

Tip: Set clear bedtime limits and stick to them. Give one extra hug or drink, but don’t give in to endless stalling.

Causes & Duration of the 4-Year-Old Sleep Regression

Why Is My 4-Year-Old Suddenly Not Sleeping?

The 4-year-old sleep regression is often linked to:

  • Developmental milestones—Your child is becoming more independent and curious.
  • Imagination & fear—They may start having bad dreams, fear of the dark, or new anxieties.
  • Changes in routine—Starting school, a new sibling, or dropping naps can disrupt sleep.

How Long Does the 4-Year-Old Sleep Regression Last?

Most sleep regressions last 2-6 weeks, but consistency is key to getting back on track.

How to Help Your 4-Year-Old Sleep Better

1. Keep a Consistent Bedtime Routine

  • A predictable routine helps cue your child for sleep.
  • Include calming activities like bath, books, and quiet time.
  • Keep bedtime between 7:00 – 8:00 PM.

2. Offer Comfort, But Set Boundaries

  • If your child is scared, acknowledge their feelings—but don’t reinforce fears by staying all night.
  • Use a nightlight or lovey for reassurance.
  • Create a “check-in” system (e.g., “I’ll check on you in 5 minutes”) to help them feel secure.

3. Manage Night Wakings Without Reinforcing Bad Habits

  • If your child wakes up, keep interactions brief and calm.
  • Avoid letting them crawl into your bed, or they may expect it every night.
  • Use a bedtime pass (a limited number of times they can call you at night).
  • Sleep training your 4-year-old can help too.

4. Address Nighttime Fears

  • Let your child talk about fears, but avoid over-explaining (e.g., “There are no monsters” can make them wonder if monsters exist).
  • Instead, empower them—”You’re safe, and I’ll check on you in 5 minutes.”

5. Stay Calm & Consistent

  • Expect some resistance at first—but stick with your plan.
  • Praise your child when they stay in bed all night.
  • Use a reward chart for motivation if needed.

FAQs

Is There Really a 4-Year-Old Sleep Regression?

Yes. While not all kids experience it, many do—often due to increased independence, imagination, and separation anxiety.

How Long Does the 4-Year-Old Sleep Regression Last?

Most kids adjust within 2-6 weeks, but inconsistent responses from parents can make it last longer.

How Can I Get My 4-Year-Old to Sleep Through the Night?

  • Keep bedtime routines predictable.
  • Use comfort strategies without reinforcing bad habits.
  • Stay consistent, even when faced with bedtime resistance.

Final Thoughts

The 4-year-old sleep regression can be tough, but it’s a normal part of development. With patience, consistency, and gentle reassurance, your child will return to better sleep.

You’ve got this.

Sweet dreams,

Kim (The Sleep Lady)

Author: Kim West, MSW, Mom of 2, creator of The Sleep Lady Shuffle
My name is Kim West, and I’m the mother of two beautiful girls, a Licensed Clinical Social Worker who has been a practicing child and family therapist for more than 21 years, and the creator of the original gentle, proven method to get a good night’s sleep for you and your child. My sleep journey began when I started experimenting with gently shaping my daughter’s sleep by not following the conventional wisdom at the time. After having success (and then more success with my second daughter!), I began helping family and friends and my step-by-step method spread like wildfire, exactly like an excellent night of sleep for a tired parent should!

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