Sleep Needs of Babies and Toddlers: Everything Parents Need to Know

Katrin Stötter

Mother, certified sleep coach, and founder of the sleep consulting service “Bärenstarker Babyschlaf.”

The Sleep of Our Little Ones – A Sensitive Topic

Sleep for babies and toddlers is a frequently discussed topic that unsettles many parents. Numerous myths and misinformation circulate online, further increasing uncertainty.

I, too, would have wished for this knowledge at the beginning of my motherhood journey—before my training as a sleep coach. Sleep and rest are crucial for the cognitive and physical development of little ones—from the first months of infancy through to school age. But how much sleep do newborns, babies, and toddlers really need? And how can parents best support their child's sleep needs?

Table of Contents

  • Sleep cycle & sleep phases in babies and toddlers
  • Creating the right sleep environment
  • Rituals and routines for better sleep
  • FAQ: Common questions about children's sleep needs
  • Conclusion

Why is sleep so important for babies and toddlers?

Especially in the first year of life, babies go through numerous developmental leaps and sleep regressions that significantly change and affect their sleep. These leaps and changes often turn nights into days for some or even several weeks. Nighttime waking phases are not uncommon during such leaps and sleep changes. During these phases, everything the child experiences and learns is processed during sleep. Sleep promotes the formation of new synaptic connections, which are crucial for growth and brain development. Healthy sleep is therefore essential for your child's physical and mental development.

Sleep cycle and sleep stages in babies and toddlers

Babies and toddlers have a different sleep cycle than adults. They fall directly into REM sleep (Rapid Eye Movement), during which experiences are processed and new skills are consolidated. Many parents think their child is sleeping restlessly because the eyes move during this phase and the child tosses and turns a lot. But the child is not sleeping restlessly; rather, they are sleeping actively.

A sleep cycle in babies lasts about 30–45 minutes, with only about 10 minutes of that time spent in deep sleep, known as Non-REM sleep. The rest of the cycle is spent in REM sleep, which shows how active your child's brain is during sleep.

Figure: Sleep Cycle: Newborns & Toddlers

In the first year of life, babies spend about 50% of their sleep in the active REM phase. This is important because frequent waking and falling back asleep promotes the processing of experiences. The proportion of REM sleep decreases significantly during the first two years of life. Adults, for example, spend only about 20% of their total sleep in the REM phase.

Creating the right sleep environment

Are you wondering how to best put your baby to sleep? A low-stimulation sleep environment is crucial to help your baby or toddler get good sleep. From the 4th month onward, your child's day-night rhythm develops. It is advisable to darken the room in time and have as many naps as possible at home in a quiet environment. From this time, your child can also produce the sleep hormone melatonin, which promotes good and restful sleep. The production of this hormone starts as soon as it gets dark. Of course, small string lights or nursing lights, etc., are perfectly fine.

More expert tips on the topic of baby sleep can be found in the article “Safe Baby Sleep – What Is Important?” and “Baby Sleeping Bag: What Should You Wear Underneath?”.

Rituals and Structures for Better Sleep

Rituals are especially important for babies and toddlers because they provide predictability and security. A consistent bedtime ritual, such as putting on pajamas or playing a Musical Soft Toy, can help your child prepare for sleep. Such bedtime rituals should be established from the 4th month and can be kept short and simple until the 18th month of life.

The "Filled Attachment Tank": Why Emotional Closeness Is Important

A "filled attachment tank" is essential for good sleep. This refers to the emotional, social, and physical reservoir of care and security that your child builds through their relationship with you. A well-filled attachment tank means that your child feels safe, loved, and secure, which is so important for emotional and social development. If the attachment tank is empty, the child may become insecure and anxious.

When babies cry, they signal a need that must be recognized and met. Whether it is hunger or simply the desire for closeness. When we hold our child in our arms when they cry, bonding and a close relationship are created, which are essential for the development and strengthening of (basic) trust and security.

Alongside all these things, a good daily routine is also a top priority for good baby and toddler sleep. Structures, rituals, sleep environment, and sleep hygiene factors must be in place.

  • Observe the awake times

    Pay attention to your child's awake times between naps and regularly offer opportunities for sleep.

  • Establish fixed daily routines

    A structured daily routine – with fixed meal times and regular activities – promotes your child's sleep: for example, breastfeeding/bottle – hygiene – breakfast – fresh air – breastfeeding/bottle – darkening – sleep ritual – nap, etc.

  • Introduce rituals

    Establish recurring elements that signal bedtime – both during the day and in the evening.

How much should babies sleep?

The sleep needs and duration of babies and toddlers vary depending on their age and developmental stage. Each child is also individual, and just like adults, there are long and short sleepers. Did you know that most factors influencing the "internal clock" and sleep habits are genetically determined?

To give you a small guide on sleep duration and needs, the following table provides an overview of the sleep requirements in hours from newborns to children up to one year old.

Sleep Needs - Age-Appropriate Guidelines

Your child's need for sleep is one thing, but the following questions are also important in this context: How long can your child stay awake from one sleep to the next without becoming overtired or being put down too early? How many naps does your little one need at what age, and when do changes in daytime naps occur? When should the last daytime nap end at the latest so that nighttime sleep is not only possible again at 9 p.m.?

How long should a child stay awake during the day?

Wake times and sleep rhythms vary from child to child. Some children can stay awake longer. Others get tired quickly and need a nap after just a few hours. It’s also important to remember that a nap can start earlier if the previous nap, whether during the day or night, was shorter—this can happen, for example, if nighttime sleep was interrupted by longer periods of wakefulness.

Similarly, a nap can start an hour later if the previous sleep was longer and more restful. The following table provides an overview of wake times in hours for newborns up to one-year-old children.

Waiting times - Age-appropriate guidelines

How long do babies and toddlers take to fall asleep?

The time it takes to fall asleep – like many things – depends on age, and there are only general guidelines that parents can use as a reference.

In general, the following applies:

  • Up to an age of 14 months, a falling asleep time between 15 and 25 minutes is absolutely normal.
  • From an age of 15 months, the time to fall asleep is usually longer and ranges between 25 and 30 minutes.

What are signs of tiredness in children?

Your child's need for sleep is naturally an important aspect, but how long can your child stay awake between naps? This time is also strongly influenced by the activities. When a child is engaged in play or mental stimulation, they become tired more quickly.

Of course, your child's signs of tiredness always take priority! These may include:

  • Rubbing eyes

  • Lay down your head

  • increased cuddling

  • increased tearfulness

However, if your little miracle does not show any signs, the reference values in the tables are a great guide for you.

Conclusion: Enough sleep for healthy development

Adequate sleep and a regular sleep schedule are essential for your child's development. They not only support growth and mental development but also help prevent overtiredness. By ensuring a quiet sleep environment, consistent routines, and a clear daily structure, you can positively influence your infant's or toddler's sleep.

If you are unsure or have questions, I am happy to support you with attachment-focused sleep coaching. I look forward to working with you!

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