Why Is My Toddler Suddenly Not Sleeping Well?

You thought you had bedtime under control. Your toddler was sleeping through the night, and then suddenly—bedtime battles, frequent wakings, and tears. Sound familiar?

You’re not alone. Many parents experience a sudden toddler sleep regression and wonder, “Why won’t my toddler sleep anymore?” The truth is, toddler sleep habits change as they grow, and disruptions are a normal part of development.

The good news? With the right strategies, you can help your child get back to healthy sleep—and finally reclaim some rest yourself.

Why Toddlers Struggle With Sleep

Toddlerhood is a stage full of growth and independence, but all those changes can disrupt sleep. Here are some of the most common reasons behind a toddler not sleeping well:

1. Developmental Milestones

When your toddler is learning new skills—like talking, jumping, or problem-solving—their brains are busy. This excitement can make it harder for them to switch off at bedtime.

2. Attention-Seeking Behavior

Toddlers crave connection. If there’s a new sibling, daycare, or big change at home, bedtime resistance and night wakings may be your child’s way of seeking comfort.

3. Growing Independence

“No!” becomes a favorite word. Many toddlers resist their bedtime routine as a way of testing boundaries, leading to stalling, tantrums, or repeated wake-ups.

4. Transitioning to a Bed

Moving from a crib to a toddler bed is a milestone—but it also comes with freedom. Many toddlers hop in and out of bed, making sleep disruptions more common.

5. Nighttime Fears

As imagination blossoms, fears of the dark or nightmares often appear, leaving toddlers anxious at bedtime.

6. Inconsistent Routine

An inconsistent toddler bedtime routine makes it harder for them to feel safe and ready to sleep. Predictability is key.

7. Illness or Teething

Colds, ear infections, or teething pain can all interfere with sleep and cause sudden night wakings.

How to Help Your Toddler Sleep Better

Sleep struggles won’t last forever, but consistency matters. Here’s how to support your child through a toddler sleep regression:

• Stick to a bedtime routine. A warm bath, story, and cuddles at the same time each night help signal sleep time.

• Set clear limits. Calm and consistent boundaries prevent endless stalling and extra requests.

• Limit screen time. Turn off screens at least an hour before bed—they delay melatonin and make it harder to fall asleep.

• Watch diet. Skip sugary snacks or hidden caffeine close to bedtime.

• Encourage daytime play. Plenty of physical activity helps your toddler’s body be ready for rest (just avoid high-energy play right before bed).

  
  

Final Thoughts

If your toddler is suddenly not sleeping, you’re not alone—and you’re not doing anything wrong. Sleep disruptions are common at this age, and most are temporary. With patience, routine, and gentle guidance, your toddler will get back on track.

If you’re feeling stuck, I can help. As a certified baby and toddler sleep consultant, I work with families to create personalized sleep plans that bring restful nights back—for everyone.