Claim: Sleep can be disrupted by dyssomnia, insomnia, hypersomnia, narcolepsy, sleep apnea, parasomnia, sleepwalking, REM behavior disorder, bruxism, and circadian rhythm sleep disorders.
Evidence: Humans may suffer from various sleep disorders , including dyssomnias , such as insomnia , hypersomnia , narcolepsy , and sleep apnea ; parasomnias , such as sleepwalking and REM behavior disorder ; bruxism ; and circadian rhythm sleep disorders.