Which of the following would count as insomnia?
Lying awake for three hours on the night before an important driving test.
Waking at 3am most nights for six weeks and feeling tired at work.
Sleeping for only six hours on a single night after a late party.
Dreaming vividly on most nights during REM sleep for a month.
53 exam-style questions on OCR GCSE Psychology 6.1 Key Concepts, covering 6.1.1 Functions, features and benefits of sleep, 6.1.2 Causes of sleep disorders, and 6.1.3 Endogenous pacemakers and exogenous zeitgebers. Each one has a worked solution and a mark scheme showing where the marks go.