Toddler Sleep: Why Won’t My Toddler Sleep? Common Problems & What Can Help

If you've found yourself Googling “Why won't my toddler sleep?”, “Why is my toddler waking at night?” or “Why does my toddler suddenly need me to fall asleep?” — you're certainly not alone.

Toddler sleep can change very quickly.

A child who previously slept well can suddenly start fighting bedtime, waking throughout the night, getting up at 5am, refusing their nap or insisting that Mum or Dad stays beside them until they fall asleep.

As a Child Sleep Consultant Ireland , these are some of the most common toddler sleep problems I see when working with families.

The good news is that toddler sleep doesn't usually change for no reason. Understanding why your toddler isn't sleeping is the first step towards knowing what to change.

I've also brought everything I teach parents about this stage into my 33-page Toddler Sleep Handbook, including the 10 most common toddler sleep challenges I see and practical steps to help improve them.

👉 Get the CulaBaby Toddler Sleep Handbook here

How Much Sleep Does a Toddler Need?

Before looking at a sleep problem, I always look at how much sleep the child is getting across the full 24 hours.

Sleep needs vary depending on age and from child to child, but toddlers between approximately 1 and 3 years generally need around 11–14 hours of total sleep in 24 hours, including naps.

Your toddler's nap needs will also change considerably during these years. Many toddlers transition from two naps to one at around 14–16 months, while older toddlers gradually begin shortening and eventually dropping their final nap.

Rather than focusing only on the clock, look at your toddler's overall sleep, daytime energy, mood and sleepy cues.

Why Is My Toddler Waking Multiple Times at Night?

Night waking is one of the most common toddler sleep problems I see.

It's normal for children — and adults — to briefly wake between sleep cycles. The difficulty comes when your toddler can't return to sleep without the same help they had when they initially fell asleep.

For example, if your toddler falls asleep with you lying beside them, holding their hand, rocking them, feeding them or replacing their soother, they may look for that same support when they wake during the night.

This is what we call a sleep association.

The goal isn't to stop your toddler from ever waking. It's to help them develop the confidence and skills to return to sleep when those natural wakings happen.

Why Does My Toddler Suddenly Want Me to Stay at Bedtime?

This can be particularly confusing when your toddler used to sleep well.

Suddenly they cry when you leave, want you to lie beside them, repeatedly call you back or start waking overnight looking for you.

Separation anxiety is a normal part of toddler development and can become particularly noticeable at bedtime.

Your toddler is becoming much more aware of their surroundings — and much more aware that you can leave.

Reassurance is important, but so is consistency. A predictable bedtime routine, calm goodbyes and a consistent response can help your toddler feel secure while still supporting healthy sleep habits.

Why Is My Toddler Fighting Bedtime?

“I'm not tired.”

“One more story.”

“I need a drink.”

“I need the toilet.”

Toddlers can become experts at delaying bedtime!

Around two years old, children are developing a much stronger sense of independence. They realise they have choices and naturally begin testing boundaries.

But bedtime battles can also be made worse by overtiredness, inconsistent boundaries or an unpredictable bedtime routine.

One of the biggest misconceptions around toddler sleep is that keeping a child awake later will make them sleep better.

Often, the opposite happens.

When toddlers stay awake beyond their optimal sleep window, they can get a “second wind”, making them appear energetic when they're actually overtired. This can contribute to bedtime resistance, night waking and early rising.

Why Is My Toddler Waking at 5am?

If your toddler is regularly waking before 6am ready to start their day, I would consider this early rising.

There can be several contributing factors, including overtiredness and what happens when your toddler wakes.

In those early morning hours, sleep pressure is naturally lower. Light, feeding, conversation or getting up and starting the day can reinforce that early waking time.

Keeping the room dark, keeping interaction minimal and maintaining a consistent morning wake-up time can all help.

It's also important to look at the whole day's sleep rather than treating the 5am wake-up in isolation.

Why Is My Toddler Refusing Their Nap?

Nap refusal doesn't automatically mean your toddler is ready to stop napping.

A toddler may suddenly refuse a nap because they're overtired, experiencing separation anxiety, going through a developmental change or simply testing their newfound independence.

You might find them playing in the cot, crying when you leave or refusing to sleep — only to fall asleep later in the buggy or car.

Dropping the nap too early can create more overtiredness, which can then contribute to difficult bedtimes, night waking and early rising.

My Toddler Used to Sleep Well – What Happened?

This is something I hear all the time.

Toddler sleep isn't linear.

Developmental changes, separation anxiety, changes to naps, illness, holidays, moving from a cot to a bed and changes in routine can all disrupt previously good sleep.

Sometimes the original disruption passes, but the new sleep habit remains.

For example, you may start lying beside your toddler during an illness because they need extra comfort. A few weeks later they're completely better — but now they can't fall asleep unless you're beside them.

That's why I always look beyond what your toddler is doing and try to understand why it's happening.

The Most Common Toddler Sleep Problems

After working with many families experiencing toddler sleep difficulties, the same challenges come up again and again:

• Bedtime battles and refusing to go to sleep

• Multiple night wakings

• Early waking, particularly around 5am

• Short naps

• Nap refusal

• Sleep associations

• Separation anxiety at bedtime

• Difficulty falling asleep independently

• Changes following the move from cot to bed

• Overtiredness and late bedtimes

Often, several of these are happening at the same time.

That's exactly why I created my Toddler Sleep Handbook.

A Practical Guide to Better Toddler Sleep

I wanted to create something parents could turn to when toddler sleep suddenly changes and they simply don't know where to start.

My 33-page CulaBaby Toddler Sleep Handbook takes you through toddler sleep step-by-step, rather than simply telling you that your toddler “should be sleeping”.

Inside you'll learn about:

• How much sleep your toddler actually needs

• Age-appropriate naps and bedtimes

• The 10 most common toddler sleep challenges

• Early rising

• Multiple night wakings

• Short naps and nap refusal

• Bedtime battles

• Separation anxiety

• Sleep associations

• Moving from cot to bed

• Creating a sleep-friendly environment

• Building a consistent bedtime routine

• Encouraging independent sleep

• Different sleep approaches and how to choose one that suits your family

Most importantly, it helps you understand why your toddler's sleep may be struggling and what you can do about it.

👉 BUY THE TODDLER SLEEP HANDBOOK

Because better toddler sleep isn't about expecting perfect nights.

It's about understanding your child's sleep, recognising the patterns that may be contributing to the problem and having a clear plan for what to do next.