For six weeks, Callum has fallen asleep quickly at bedtime but traffic noise has woken him several times on most nights. He often cannot settle again and feels tired at college the next day.
Which statement correctly classifies Callum's sleep problem?
Callum has sleep-maintenance insomnia because his sleep starts normally but is repeatedly interrupted.
Callum does not have insomnia because he is able to fall asleep at the start of the night.
Callum has sleep-onset insomnia because daytime tiredness shows that his sleep begins too late.
Callum has sleep-onset insomnia because the noise keeps him awake after he goes to bed.
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.