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The Window of Tolerance in Children and its Connection to Quality Sleep

As parents and caregivers, we understand the importance of quality sleep for our children's overall well-being and development. However, did you know that the concept of the window of tolerance also influences a child's sleep patterns? The window of tolerance refers to the optimal range of emotional and arousal states in which children can effectively cope with stressors. In this blog post, we will explore the fascinating connection between the window of tolerance and sleep in children, and how understanding this link can help promote better sleep hygiene.

Understanding the Window of Tolerance:

The window of tolerance encompasses a child's ability to regulate their emotions and respond to stressors effectively. When a child is within their window of tolerance, they experience a balanced state of arousal, enabling them to manage challenges, learn, and engage in healthy social interactions. However, when they become dysregulated, either by being under-stimulated or overwhelmed, their window of tolerance narrows, impacting their overall well-being, including their sleep.

impacting their overall well-being, including their sleep.

The Impact of the Window of Tolerance on Sleep:

1. Bedtime Routine and Wind-Down Period:

A consistent bedtime routine and a calming wind-down period are essential to help children transition from an active state to a relaxed one. By creating a predictable routine, you provide a sense of safety and security, expanding their window of tolerance and preparing them for a restful night's sleep.

2. Emotional Regulation and Sleep:

Children who struggle with emotional regulation may find it challenging to settle down for sleep. Teaching them age-appropriate self-regulation techniques, such as deep breathing exercises or mindfulness, can help widen their window of tolerance, allowing them to manage their emotions and promote better sleep.

3. Sensory Environment and Sleep:

The sensory environment plays a significant role in a child's ability to relax and fall asleep. Creating a sleep-friendly space that minimizes noise, light, and other sensory stimuli can help children stay within their window of tolerance and facilitate better sleep quality.

4. Nighttime Anxiety and Sleep:

Children who experience anxiety may have a narrower window of tolerance, leading to difficulty falling asleep or disrupted sleep. Addressing underlying anxieties through open communication, reassurance, and relaxation techniques can widen their window of tolerance and promote a more peaceful sleep environment.

5. Trauma and Sleep:

Children who have experienced trauma may have a more limited window of tolerance, leading to sleep disturbances. It is crucial to provide trauma-informed care and seek professional support when needed to help children expand their window of tolerance and establish healthy sleep patterns.

Understanding the window of tolerance in children provides valuable insights into their emotional well-being and sleep patterns. By promoting emotional regulation, creating a sleep-friendly environment, addressing nighttime anxiety, and providing trauma-informed care, we can support children in widening their window of tolerance and ensuring quality sleep. Remember that each child is unique, and it may take time to find the strategies that work best for them. By prioritizing sleep hygiene and considering the connection between the window of tolerance and sleep, we can help our children experience the restorative benefits of a good night's sleep and contribute to their overall growth and development.


Bryson, T. & Siegel, D. (2012) The Whole Brain-Child

Desautels, L. (2017) Brain Aligned Strategies: Addressing the emotional, social and academic health of all students

Melrose, R. (2013) The 60 Seconds Fix

Rock, D. et al (2012) ‘The Healthy Mind Platter’ in NeuroLeadership Journal (Issue 4)

Siegel, D. (2015) The Developing Mind

Siegel, D. & Bryson, T. (2020) The Power of Showing Up

Treleaven, D. (2018) TraumaSensitive Mindfulness



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