Sleep or Insomnia Therapists in Calgary, AB

Photo of Katherine Schurer, MSc, RPsych, Psychologist
Katherine Schurer
Psychologist, MSc, RPsych
Verified Verified
2 Endorsed
Calgary, AB T2T  (Online Only)
Feeling really worried? Having trouble sleeping? Struggling to adjust to change? I can help. I work with adults to manage unpleasant emotions and thoughts; improve sleep; develop decision making and problem solving skills; deal with imposter syndrome; and cope with life transitions (i.e., becoming a parent/caregiver, changing job/career, moving to a new place, retirement, relationship challenges). Together, we can make sense of your current situation and determine how you can improve your wellbeing and overall life satisfaction. I have worked with diverse populations and welcome all adults.
Feeling really worried? Having trouble sleeping? Struggling to adjust to change? I can help. I work with adults to manage unpleasant emotions and thoughts; improve sleep; develop decision making and problem solving skills; deal with imposter syndrome; and cope with life transitions (i.e., becoming a parent/caregiver, changing job/career, moving to a new place, retirement, relationship challenges). Together, we can make sense of your current situation and determine how you can improve your wellbeing and overall life satisfaction. I have worked with diverse populations and welcome all adults.
(587) 804-2193 View (587) 804-2193
Photo of Shannon Jones, PhD, RPsych, Psychologist
Shannon Jones
Psychologist, PhD, RPsych
Verified Verified
4 Endorsed
Calgary, AB T2H
Waitlist for new clients
I also treat insomnia, perfectionism, depression, ADHD, trauma, stress, and relationship problems.
I am a Ph.D. trained clinical psychologist in private practice, conveniently located in south Calgary, Alberta. I am committed to fostering a strong, respectful and collaborative therapeutic relationship with my clients, which I believe is integral to achieving success in therapy. I work with clients to identify goals and tailor a treatment plan around altering unhelpful thoughts, maladaptive behaviour patterns, and difficult emotions, to enhance overall wellness and promote a positive quality of life. In my practice, I work with adults of all ages.
I also treat insomnia, perfectionism, depression, ADHD, trauma, stress, and relationship problems.
I am a Ph.D. trained clinical psychologist in private practice, conveniently located in south Calgary, Alberta. I am committed to fostering a strong, respectful and collaborative therapeutic relationship with my clients, which I believe is integral to achieving success in therapy. I work with clients to identify goals and tailor a treatment plan around altering unhelpful thoughts, maladaptive behaviour patterns, and difficult emotions, to enhance overall wellness and promote a positive quality of life. In my practice, I work with adults of all ages.
(587) 412-5208 View (587) 412-5208
Photo of Aaron Telnes - Catalyst Psychology, MC, RPsych, Psychologist
Catalyst Psychology
Psychologist, MC, RPsych
Verified Verified
Calgary, AB T2N
My name is Aaron Telnes and I am the Owner and Registered Psychologist at Catalyst Psychology. I strive to help clients to both overcome their mental health challenges and achieve their mental health and life-related goals through a client centered, solution-focused, approach to therapy. Working with clients who might be struggling with Anxiety, Depression, Insomnia, Life Transitions, ADHD, and Relationship Issues, I work to ignite the change within and support clients to address their challenges, develop coping strategies, cultivate a positive mindset, achieve their goals, and live a happy and successful life.
My name is Aaron Telnes and I am the Owner and Registered Psychologist at Catalyst Psychology. I strive to help clients to both overcome their mental health challenges and achieve their mental health and life-related goals through a client centered, solution-focused, approach to therapy. Working with clients who might be struggling with Anxiety, Depression, Insomnia, Life Transitions, ADHD, and Relationship Issues, I work to ignite the change within and support clients to address their challenges, develop coping strategies, cultivate a positive mindset, achieve their goals, and live a happy and successful life.
(587) 801-5086 View (587) 801-5086
Photo of Maria Tsoukalas, MA, RPsych, Psychologist
Maria Tsoukalas
Psychologist, MA, RPsych
Verified Verified
5 Endorsed
Calgary, AB T2N  (Online Only)
Psychologist specializing in anxiety, sleep/insomnia, relationship difficulties, grief/loss, and stress. Dedicated advocate and ally for the 2SLGBTQ+ community. Collaborative conversation and goal creation. Let's chat! I offer a free, 15-minute consultation to discover if we're a good match and to answer any questions you have. Let's work together to navigate life's challenges and nurture your well-being.
Psychologist specializing in anxiety, sleep/insomnia, relationship difficulties, grief/loss, and stress. Dedicated advocate and ally for the 2SLGBTQ+ community. Collaborative conversation and goal creation. Let's chat! I offer a free, 15-minute consultation to discover if we're a good match and to answer any questions you have. Let's work together to navigate life's challenges and nurture your well-being.
(587) 602-0216 View (587) 602-0216
Photo of Dr. Dale Dirkse, PhD, Psychologist
Dr. Dale Dirkse
Psychologist, PhD
Verified Verified
Calgary, AB T2C
I am a PhD trained Clinical Psychologist with expertise in assessing and treating mood disorders (e.g., depression, bipolar disorder), anxiety disorders (e.g., social anxiety, generalized anxiety and worry, panic disorder), and sleep disorders (e.g., insomnia, parasomnias), amongst other issues. I also work with many clients who are having difficulty in an area of their life and need support in learning how to cope most effectively with life circumstances. I provide services to individual adults of all ages (not children or couples), in Alberta and Manitoba.
I am a PhD trained Clinical Psychologist with expertise in assessing and treating mood disorders (e.g., depression, bipolar disorder), anxiety disorders (e.g., social anxiety, generalized anxiety and worry, panic disorder), and sleep disorders (e.g., insomnia, parasomnias), amongst other issues. I also work with many clients who are having difficulty in an area of their life and need support in learning how to cope most effectively with life circumstances. I provide services to individual adults of all ages (not children or couples), in Alberta and Manitoba.
(587) 402-9638 View (587) 402-9638
Photo of Karoline Sandhurst, MC, RPsych, Psychologist
Karoline Sandhurst
Psychologist, MC, RPsych
Verified Verified
Calgary, AB T2N
If you're struggling to feel like yourself, and are overwhelmed, anxious, stressed, burned out....I can help. Perhaps you're looking to find peace, joy, and meaningful living. Or maybe you just need to know how to sleep well again. I'm here to help you get your mojo back. I'll use my 20 years of counselling experience to help you cope, heal, and eventually thrive. I'll use genuineness, non-judgment, curiosity, empathy and lots of humor to help get you to where you want to be.
If you're struggling to feel like yourself, and are overwhelmed, anxious, stressed, burned out....I can help. Perhaps you're looking to find peace, joy, and meaningful living. Or maybe you just need to know how to sleep well again. I'm here to help you get your mojo back. I'll use my 20 years of counselling experience to help you cope, heal, and eventually thrive. I'll use genuineness, non-judgment, curiosity, empathy and lots of humor to help get you to where you want to be.
(587) 806-3909 View (587) 806-3909
Photo of Dr. Cherie La Rocque, PhD, RPsych, Psychologist
Dr. Cherie La Rocque
Psychologist, PhD, RPsych
Verified Verified
Calgary, AB T3H
Are you struggling to fall asleep or stay asleep? Have you tried various methods to improve your sleep but without success? As a PhD trained clinical psychologist specialized in evidence-based therapy for insomnia, I'd be delighted to help you achieve restful sleep. Cognitive behavioural therapy for insomnia (CBT-I), the first-line recommended treatment, has proven effective for up to 80% of individuals. Many see significant sleep improvements within just a few weeks, with lasting benefits.
Are you struggling to fall asleep or stay asleep? Have you tried various methods to improve your sleep but without success? As a PhD trained clinical psychologist specialized in evidence-based therapy for insomnia, I'd be delighted to help you achieve restful sleep. Cognitive behavioural therapy for insomnia (CBT-I), the first-line recommended treatment, has proven effective for up to 80% of individuals. Many see significant sleep improvements within just a few weeks, with lasting benefits.
(587) 890-9155 View (587) 890-9155
Photo of Moriah Edge-Partington, MEd, BA, Registered Provisional Psychologist
Moriah Edge-Partington
Registered Provisional Psychologist, MEd, BA
Verified Verified
3 Endorsed
Calgary, AB T1Y
My approach to therapy is genuine and collaborative. In my practice, I specialize in supporting individuals facing chronic pain, sleep issues, trauma, burnout, and career challenges. I strive to help my clients work towards meaningful change and achieving their goals. Through my research and practice, I have learned of our brain’s incredible capacity to adapt and change, showing our ability to continually grow and overcome challenges. In therapy, I incorporate evidence-based approaches to integrate this experience into my therapeutic practice while bringing an authentic, non-judgmental approach to create safety and a space to heal.
My approach to therapy is genuine and collaborative. In my practice, I specialize in supporting individuals facing chronic pain, sleep issues, trauma, burnout, and career challenges. I strive to help my clients work towards meaningful change and achieving their goals. Through my research and practice, I have learned of our brain’s incredible capacity to adapt and change, showing our ability to continually grow and overcome challenges. In therapy, I incorporate evidence-based approaches to integrate this experience into my therapeutic practice while bringing an authentic, non-judgmental approach to create safety and a space to heal.
(587) 905-0717 View (587) 905-0717
Photo of Brenda L Logan - Brenda Logan - Aspen Grove Counselling, RN , BScN, MC, CCC, Counsellor
Brenda Logan - Aspen Grove Counselling
Counsellor, RN , BScN, MC, CCC
Verified Verified
4 Endorsed
Calgary, AB T2E
Are you navigating the challenges of adult ADHD, struggling with sleep problems, PTSD, mental health, relationship issues or all of the above? I'm a Counselling Therapist offering compassionate support and integrative strategies to enhance your well-being. Receive an individualized plan that integrates options like nutrition, lifestyle changes, and evidence-based therapies such as CBT for ADHD, Insomnia or Nightmares, Emotion-Focused Therapy, and Mindfulness. Whether you're seeking relief from insomnia and nightmares, managing ADHD symptoms, or the impacts of PTSD within relationships, I'd like to help you live the life you want.
Are you navigating the challenges of adult ADHD, struggling with sleep problems, PTSD, mental health, relationship issues or all of the above? I'm a Counselling Therapist offering compassionate support and integrative strategies to enhance your well-being. Receive an individualized plan that integrates options like nutrition, lifestyle changes, and evidence-based therapies such as CBT for ADHD, Insomnia or Nightmares, Emotion-Focused Therapy, and Mindfulness. Whether you're seeking relief from insomnia and nightmares, managing ADHD symptoms, or the impacts of PTSD within relationships, I'd like to help you live the life you want.
(587) 602-0913 View (587) 602-0913
Photo of Kristina Founk - Kristina Founk Hypnotherapy, RCH, CT, BA Psyc
Kristina Founk Hypnotherapy
RCH, CT, BA Psyc
Verified Verified
Calgary, AB T3C
I believe that life doesn't have to be so hard, and every single one of us is capable of accepting more ease in our lives. Through clinical hypnotherapy, I support individuals who are ready to change by effectively addressing chronic anxiety, phobias, negative thinking, and insomnia, often more quickly than traditional talk therapy. My clinical hypnotherapy services are designed for individuals seeking more ease and fulfillment in their lives. We begin by establishing clear, measurable goals tailored to how you would rather feel. Our approach helps you regulate your nervous system, release old patterns, and embrace a life of ease.
I believe that life doesn't have to be so hard, and every single one of us is capable of accepting more ease in our lives. Through clinical hypnotherapy, I support individuals who are ready to change by effectively addressing chronic anxiety, phobias, negative thinking, and insomnia, often more quickly than traditional talk therapy. My clinical hypnotherapy services are designed for individuals seeking more ease and fulfillment in their lives. We begin by establishing clear, measurable goals tailored to how you would rather feel. Our approach helps you regulate your nervous system, release old patterns, and embrace a life of ease.
(587) 858-3274 View (587) 858-3274
Photo of Bethany Savoy, MSW, RSW, Registered Social Worker
Bethany Savoy
Registered Social Worker, MSW, RSW
Verified Verified
1 Endorsed
Calgary, AB T3G
I have a special interest in post-secondary concerns, parenting, adoption, ADHD, procrastination, sleep and insomnia, trauma, grief, mindfulness, burnout, and chronic pain & illness.
Everyone has times in their life when they can benefit from some additional support. Seeing a counsellor shouldn’t be an intimidating experience. My goal is to help you discover new ways of looking at your life and learn skills that will help you move forward. You are the expert in what you are going through, but I will support and guide you as you set goals and make the changes you want to make.
I have a special interest in post-secondary concerns, parenting, adoption, ADHD, procrastination, sleep and insomnia, trauma, grief, mindfulness, burnout, and chronic pain & illness.
Everyone has times in their life when they can benefit from some additional support. Seeing a counsellor shouldn’t be an intimidating experience. My goal is to help you discover new ways of looking at your life and learn skills that will help you move forward. You are the expert in what you are going through, but I will support and guide you as you set goals and make the changes you want to make.
(587) 804-2555 View (587) 804-2555
Photo of Janice Cathcart, Psychologist
Janice Cathcart
Psychologist
Verified Verified
Calgary, AB T2M
Waitlist for new clients
Are you struggling or feeling stuck? I am a psychologist with over 25 years experience working with a wide variety of clients. Currently, I work primarily with adults who are experiencing chronic pain, adjustment to illness or life transitions, anxiety, stress, insomnia, and burn-out. I consider therapy an active, collaborative process requiring a compassionate and nuanced approach. I appreciate that each individual's process is unique and together we will work to help you move toward more fully living the life you desire.
Are you struggling or feeling stuck? I am a psychologist with over 25 years experience working with a wide variety of clients. Currently, I work primarily with adults who are experiencing chronic pain, adjustment to illness or life transitions, anxiety, stress, insomnia, and burn-out. I consider therapy an active, collaborative process requiring a compassionate and nuanced approach. I appreciate that each individual's process is unique and together we will work to help you move toward more fully living the life you desire.
(825) 360-0479 View (825) 360-0479
Photo of Dr. Laurie Ali, PhD, RPsych, Psychologist
Dr. Laurie Ali
Psychologist, PhD, RPsych
Verified Verified
5 Endorsed
Calgary, AB T2S
It can be frustrating and confusing when life looks good on the outside but doesn’t feel good on the inside; feeling tired, overwhelmed and disconnected from the things you worked so hard to have. Therapy may seem like one more thing to do in an already busy life, but there is part of you that is curious about whether it could make a difference. As a Ph.D. level Clinical Psychologist, I have spent the past 10 years successfully treating adults with depression, anxiety, OCD, insomnia, perfectionism, life stress, and relationship difficulties.
It can be frustrating and confusing when life looks good on the outside but doesn’t feel good on the inside; feeling tired, overwhelmed and disconnected from the things you worked so hard to have. Therapy may seem like one more thing to do in an already busy life, but there is part of you that is curious about whether it could make a difference. As a Ph.D. level Clinical Psychologist, I have spent the past 10 years successfully treating adults with depression, anxiety, OCD, insomnia, perfectionism, life stress, and relationship difficulties.
(587) 412-1563 View (587) 412-1563
Photo of Aaron Telnes, MC, RPsych, Psychologist
Aaron Telnes
Psychologist, MC, RPsych
Verified Verified
3 Endorsed
Calgary, AB T2N
I am an ADHD-Certified Clinical Service Provider, certified in Cognitive Behaviour Therapy for Insomnia, and trained in Gottman Method Couples Therapy, Level 1 & 2.
I strive to help clients to both overcome their mental health challenges and achieve their mental health and life-related goals through a client centered, solution-focused, approach to therapy. Starting with the end goal in mind and devising a plan to get you there. I work with clients who might be struggling with Insomnia, ADHD, Relationship Issues, Anxiety, Depression, and Life Transitions. I strive to support my clients to gain a greater sense of mastery and confidence in their lives, to build a healthy and positive mindset, and to attain skills that will allow them to confidently and comfortable approach the challenges of life.
I am an ADHD-Certified Clinical Service Provider, certified in Cognitive Behaviour Therapy for Insomnia, and trained in Gottman Method Couples Therapy, Level 1 & 2.
I strive to help clients to both overcome their mental health challenges and achieve their mental health and life-related goals through a client centered, solution-focused, approach to therapy. Starting with the end goal in mind and devising a plan to get you there. I work with clients who might be struggling with Insomnia, ADHD, Relationship Issues, Anxiety, Depression, and Life Transitions. I strive to support my clients to gain a greater sense of mastery and confidence in their lives, to build a healthy and positive mindset, and to attain skills that will allow them to confidently and comfortable approach the challenges of life.
(587) 819-0203 View (587) 819-0203
Photo of Dr. Rachel Martin, PhD, RPsych, Psychologist
Dr. Rachel Martin
Psychologist, PhD, RPsych
Verified Verified
4 Endorsed
Calgary, AB T2H
I think it's great that you're taking steps to create the life you want! I am a PhD trained clinical psychologist with expertise in treating depression, anxiety, illness and chronic pain, insomnia, trauma, ADHD, relationship issues, grief/loss/transitions, behaviour change, self-esteem, assertiveness, and emotion regulation.
I think it's great that you're taking steps to create the life you want! I am a PhD trained clinical psychologist with expertise in treating depression, anxiety, illness and chronic pain, insomnia, trauma, ADHD, relationship issues, grief/loss/transitions, behaviour change, self-esteem, assertiveness, and emotion regulation.
(587) 852-0438 View (587) 852-0438
Photo of Manu J. Sharma, MSc, Psychologist
Manu J. Sharma
Psychologist, MSc
Verified Verified
1 Endorsed
Calgary, AB T2N
I am a Registered Provisional Psychologist offering psychological assessment services (e.g., ADHD assessment) and psychotherapy. I believe that everyone has the ability to make lasting positive changes in their lives and finding a psychologist that fits with you is part of that process. I prioritize diversity, and an open and collaborative therapeutic relationship. If you are an adult struggling with ADHD, stress, racial identity issues, chronic pain, depressed mood, anxiety, chronic illness, grief, relationship difficulties, career dissatisfaction, sleep difficulties, or work-related stress, please feel free to reach out.
I am a Registered Provisional Psychologist offering psychological assessment services (e.g., ADHD assessment) and psychotherapy. I believe that everyone has the ability to make lasting positive changes in their lives and finding a psychologist that fits with you is part of that process. I prioritize diversity, and an open and collaborative therapeutic relationship. If you are an adult struggling with ADHD, stress, racial identity issues, chronic pain, depressed mood, anxiety, chronic illness, grief, relationship difficulties, career dissatisfaction, sleep difficulties, or work-related stress, please feel free to reach out.
(587) 856-8399 View (587) 856-8399
Photo of Dr. Magdalen Schluter, PhD, RPsych, Psychologist
Dr. Magdalen Schluter
Psychologist, PhD, RPsych
Verified Verified
Calgary, AB T2M
, sleep) concerns in the community, and with military and paramilitary clients.
Each client deserves a tailored approach to treatment. I integrate evidence-based principles from a variety of therapy models to provide flexible and individualized treatment. With an individualized treatment plan, I help my clients to identify and change unhelpful patterns of thoughts, feelings, and behaviours in order to reduce symptoms, promote positive mental health, and enhance quality of life. I enjoy workng with adults from diverse backgrounds and who are dealing with a variety of mental health concerns.
, sleep) concerns in the community, and with military and paramilitary clients.
Each client deserves a tailored approach to treatment. I integrate evidence-based principles from a variety of therapy models to provide flexible and individualized treatment. With an individualized treatment plan, I help my clients to identify and change unhelpful patterns of thoughts, feelings, and behaviours in order to reduce symptoms, promote positive mental health, and enhance quality of life. I enjoy workng with adults from diverse backgrounds and who are dealing with a variety of mental health concerns.
(825) 254-7873 View (825) 254-7873
Photo of Derek Van Dalen, MACP, CCC, Registered Provisional Psychologist
Derek Van Dalen
Registered Provisional Psychologist, MACP, CCC
Verified Verified
3 Endorsed
Calgary, AB T3E
Feeling stuck because of constant struggles and stress from work, relationships and family is exhausting. From work to sleep to relationships, joy is missing. You might feel burned out and alone. You might have tried other resources and found they aren't working. Here’s where I come in. I have training, experience helping others and lived experience of personal trauma, toxic workplaces, institutional and organizational injustice, and career transitions. I offer a safe, non-judgmental and compassionate place to come alongside you, develop a personalized plan so you can become unstuck and flourish.
Feeling stuck because of constant struggles and stress from work, relationships and family is exhausting. From work to sleep to relationships, joy is missing. You might feel burned out and alone. You might have tried other resources and found they aren't working. Here’s where I come in. I have training, experience helping others and lived experience of personal trauma, toxic workplaces, institutional and organizational injustice, and career transitions. I offer a safe, non-judgmental and compassionate place to come alongside you, develop a personalized plan so you can become unstuck and flourish.
(825) 435-1129 View (825) 435-1129
Photo of Jennifer Ference-Belhomme - Azalea Child Psychology Services, PhD, RPsych, Psychologist
Azalea Child Psychology Services
Psychologist, PhD, RPsych
Verified Verified
Calgary, AB T3B
Waitlist for new clients
In my private practice, I specialize in assessing various developmental challenges in children, adolescents, and in some cases, young adults. I have experience in assessing and diagnosing Autism Spectrum Disorder (ASD), ADHD, Learning Disabilities, and Intellectual Disabilities, amongst other challenges that present in children/adolescents. I am well versed in doing psycho-educational assessments and can identify giftedness for school placement. I have experience providing therapy (online and in person) to children and youth struggling with various medical conditions (e.g., chronic pain, Tourette's syndrome) and sleep challenges.
In my private practice, I specialize in assessing various developmental challenges in children, adolescents, and in some cases, young adults. I have experience in assessing and diagnosing Autism Spectrum Disorder (ASD), ADHD, Learning Disabilities, and Intellectual Disabilities, amongst other challenges that present in children/adolescents. I am well versed in doing psycho-educational assessments and can identify giftedness for school placement. I have experience providing therapy (online and in person) to children and youth struggling with various medical conditions (e.g., chronic pain, Tourette's syndrome) and sleep challenges.
(825) 807-5647 View (825) 807-5647
Photo of Anna Robertshaw, MSW, RSW, Registered Social Worker
Anna Robertshaw
Registered Social Worker, MSW, RSW
Verified Verified
2 Endorsed
Calgary, AB T3C
I have worked with individuals experiencing, but not limited to, anxiety, depression, life transitions, relationship challenges, low self esteem, sleep issues, and the effects of trauma.
I believe therapy is built on trust, safety, and mutual respect, and so I bring my real self to the therapeutic relationship in order to meet and discover the ‘self’ you want to become. Together we will explore the physical, emotional, and environmental factors creating friction in your life, and work towards sustainable and meaningful change. This may include learning new skills, processing emotions, and finding meaning in your past and present experiences. Life is full of challenges, and I will accompany you in learning to build resilience in the face of those challenges, without becoming overwhelmed
I have worked with individuals experiencing, but not limited to, anxiety, depression, life transitions, relationship challenges, low self esteem, sleep issues, and the effects of trauma.
I believe therapy is built on trust, safety, and mutual respect, and so I bring my real self to the therapeutic relationship in order to meet and discover the ‘self’ you want to become. Together we will explore the physical, emotional, and environmental factors creating friction in your life, and work towards sustainable and meaningful change. This may include learning new skills, processing emotions, and finding meaning in your past and present experiences. Life is full of challenges, and I will accompany you in learning to build resilience in the face of those challenges, without becoming overwhelmed
(587) 847-3016 View (587) 847-3016
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Sleep or Insomnia Counsellors

How effective is treatment for insomnia?

The most effective treatments for insomnia are behavioral techniques that reduce anxiety, including anxiety about falling asleep, and allow the body’s natural cycles to be recalibrated. The most common treatment is cognitive behavioral therapy for insomnia (CBT-I), which researchers have found to be more useful than medication, with rates of success as high as 80 percent.

Are there specific medications for sleep problems?

There are many medications, both over-the-counter and prescription that treat sleep problems. Supplements such as melatonin are popular and may help, though there is little evidence that it is more effective than a placebo. Prescription medications such as zolpidem are sometimes prescribed.

Are there natural treatments for sleep problems?

There are many natural treatments for everyday sleep problems. Reducing blue-light emitting screens, setting a regular bedtime, regular exercise, reducing caffeine and nicotine consumption, and keeping the bedroom dark and cool at night are all lifestyle changes that can help those who struggle with sleep but may not reach the level of an insomnia diagnosis.

What’s the difference between having trouble falling asleep and insomnia?

Life events, stress, and anxiety can lead to sleepless nights for everyone from time to time. To be diagnosed with insomnia, a patient must experience trouble falling asleep, trouble remaining asleep, waking up too early, or non-restorative sleep at least three nights per week for at least one month. Sleep problems affect one-third to one-half of the population, while chronic insomnia affects about 10 to 15 percent of people.