---
title: Sleep Science
description: Sleep science explains what sleep does and how it fails. You will learn sleep stages and circadian rhythm, sleep disorders, the effects of deprivation and what the evidence says about improving sleep.
category: health-medicine
subcategory: medical-sciences
difficulty: beginner, intermediate, advanced
url: /subject/sleep-science
---

# Sleep Science

Sleep science explains what sleep does and how it fails. You will learn sleep stages and circadian rhythm, sleep disorders, the effects of deprivation and what the evidence says about improving sleep.

## Available Resources

2 Books • 1 Courses • 3 Websites • 1 Papers

## Books

### 1. Kryger's Principles and Practice of Sleep Medicine (7th Edition)

**Author:** Meir H. Kryger, Thomas Roth, Cathy A. Goldstein

The field's standard two-volume clinical reference, seventh edition (2021), spanning sleep neurobiology, chronobiology, polysomnography and scoring, and the diagnosis and management of every recognized sleep disorder across adult and pediatric populations.

**Difficulty:** Advanced | **Language:** English | **Price:** Paid

**Link:** https://www.amazon.com/dp/0323661890?tag=edmonddante07-20

**Tags:** sleep medicine, sleep disorders, polysomnography, chronobiology, sleep neurobiology

### 2. Life Time: The New Science of the Body Clock, and How It Can Revolutionize Your Sleep and Health

**Author:** Russell Foster

Oxford circadian neuroscientist Russell Foster explains the body clock: how light entrains it, what chronotypes mean, and how misalignment from shift work and jet lag affects metabolism, immunity and mental health. Cites the primary literature throughout.

**Difficulty:** Intermediate | **Language:** English | **Price:** Paid

**Link:** https://www.amazon.com/dp/024152931X?tag=edmonddante07-20

**Tags:** circadian rhythms, chronobiology, chronotypes, shift work, jet lag

## Websites

### 1. Path to Better Sleep (VA digital CBT-I)

**Author:** US Department of Veterans Affairs

Free public program from the US Department of Veterans Affairs delivering digital cognitive behavioral therapy for insomnia: a sleep-disorder screening questionnaire, sleep-behavior education, a six-week self-guided CBT-I course with sleep diary, and sleep apnea material. The 'what the evidence says about improving sleep' half of the topic note, delivered as the actual intervention rather than a summary of it — sleep restriction, stimulus control and cognitive restructuring, the components the AASM 2021 guideline gives its single STRONG recommendation to.

**Difficulty:** Beginner | **Language:** English | **Price:** Free

**Link:** https://www.veterantraining.va.gov/sleep/index.asp

**Tags:** insomnia, cbt-i, sleep restriction, stimulus control, sleep diary

### 2. Sleep Education (American Academy of Sleep Medicine)

**Author:** American Academy of Sleep Medicine

The American Academy of Sleep Medicine's patient-facing reference covering the five sleep disorder categories — insomnia, hypersomnias, parasomnias, sleep-related breathing and movement disorders — plus sleep studies, CPAP, cognitive behavioral therapy, and an accredited sleep center directory.

**Difficulty:** Beginner | **Language:** English | **Price:** Free

**Link:** https://sleepeducation.org/

**Tags:** sleep disorders, sleep medicine, insomnia, sleep apnea, cpap

### 3. How Sleep Works (NHLBI)

**Author:** National Heart, Lung, and Blood Institute

The National Heart, Lung, and Blood Institute's sleep hub explains NREM and REM stages, the 80-to-100-minute cycle, the sleep/wake circadian clock, why sleep matters, and how much sleep different ages need. Short but mechanistically correct — it teaches sleep architecture and the sleep/wake cycle rather than sleep-hygiene tips, and its sibling pages form a coherent starting sequence.

**Difficulty:** Beginner | **Language:** English | **Price:** Free

**Link:** https://www.nhlbi.nih.gov/health/sleep/stages-of-sleep

**Tags:** sleep stages, rem sleep, nrem sleep, sleep architecture, circadian rhythms

## Papers

### 1. The two-process model of sleep regulation: Beginnings and outlook

**Author:** Alexander A. Borbely

Borbely's open-access review of the two-process model he originated: homeostatic Process S interacting with circadian Process C. Traces the model from 1970s rat experiments through human sleep deprivation studies to synaptic, molecular and local-sleep findings. Source-of-record, written by the person who built the model everything else in this topic implicitly assumes.

**Difficulty:** Advanced | **Language:** English | **Price:** Free

**Link:** https://pmc.ncbi.nlm.nih.gov/articles/PMC9540767/

**Tags:** two-process model, sleep homeostasis, circadian rhythms, sleep regulation, sleep deprivation

## Courses

### 1. Sleep: Neurobiology, Medicine, and Society

**Author:** Ralph Lydic, Helen Baghdoyan

University of Michigan course on the biology and medicine of sleep: neural control of sleep and wakefulness, circadian rhythms, insomnia and its treatment, sleep-disordered breathing, psychiatric links and daytime sleepiness. Learners understand why sleep matters for health and performance and how sleep disorders are treated.

**Difficulty:** Beginner | **Language:** English | **Price:** Free

**Link:** https://www.coursera.org/learn/sleep

**Tags:** sleep-neurobiology, circadian-rhythms, sleep-disorders, insomnia, sleep-medicine

---

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