Learning objective

Different types of sleep within the sleep cycle, focusing on their duration and features such as brain activity, muscle tension, eye movements, and dreams, including: • rapid eye movement (REM) sleep • non-rapid eye movement (nREM) sleep. Knowledge of specific stages of sleep is not required.

Read the explanation, check the common trap, then practise with flashcards and questions.

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Exam focus

Read the explanation.
Check key terms.
Practise with linked questions.

Cambridge IGCSE PsychologySleep and dreams

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Quick explanation

Different types of sleep within the sleep cycle, focusing on their duration and features such as brain activity, muscle tension, eye movements, and dreams, including: • rapid eye movement (REM) sleep • non-rapid eye movement (nREM) sleep. Knowledge of specific stages of sleep is not required

This point belongs to Biological rhythms, natural cycles of bodily processes regulated by a person’s internal ‘clock’,, especially Biological rhythms, natural cycles of bodily processes regulated by a person’s internal ‘clock’, outcomes.
You need to be able to different types of sleep within the sleep cycle, focusing on their duration and features such as brain activity, muscle tension, eye movements, and dreams, including: • rapid eye movement (REM) sleep • non-rapid eye movement (nREM) sleep. Knowledge of specific stages of sleep is not required.
The key ideas to know are Define, Describe, and Outline.
Use the linked flashcards and practice questions to check recall, then practise applying the idea in an exam-style answer.

Key concepts

DefineDescribeOutline

Why it matters

This objective helps connect Biological rhythms, natural cycles of bodily processes regulated by a person’s internal ‘clock’, outcomes to exam-style questions, flashcards, and revision notes for Biological rhythms, natural cycles of bodily processes regulated by a person’s internal ‘clock’,.

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