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Sleep psychology is a specialty that developed from the need to better understand and treat sleep and sleepârelated disorders. The specialty requires a broad understanding of: 1  Normal and disordered sleep. 2  Sleep physiology.3  The effects of sleep medications on the brain.4  Sleep cycles.5  Sleep changes related to age.leep psychology is a specialty that developed from the need to better understand and treat sleep and sleepârelated disorders. The specialty requires a broad understanding of: 1  Normal and disordered sleep. 2  Sleep physiology. 3  The effects of sleep medications on the brain. 4  Sleep cycles. 5  Sleep changes related to age.
Psychology Definition of SLEEP HYGIENE: These are techniques for people suffering from insomnia. These patterns are to make sleep better, like less caffeine during the day, no napping and keeping a sleep diary. These are special techniques used for the behavioural treatment. SLEEP HYGIENE: In sleep hygiene, the bed is only used for sex and sleeping..