Which term refers to recurring difficulties with sleep initiation or maintenance?

Which term refers to recurring difficulties with sleep initiation or maintenance?

• A. Narcolepsy
• B. Insomnia
• C. Jet lag
• D. NREM sleep

Answer: (B)

Recurring difficulties initiating or maintaining sleep describe insomnia. This means trouble falling asleep, staying asleep, or waking up too early and not being able to return to sleep, happening on multiple nights and causing distress or impairment. Narcolepsy involves daytime sleep attacks and features like excessive daytime sleepiness, not trouble with sleep onset or maintenance. Jet lag is a temporary disruption of the sleep–wake cycle after travel across time zones. NREM sleep is a stage of sleep, not a disorder. Insomnia best fits the described pattern of recurring sleep initiation or maintenance difficulties.

Recurring difficulties initiating or maintaining sleep describe insomnia. This means trouble falling asleep, staying asleep, or waking up too early and not being able to return to sleep, happening on multiple nights and causing distress or impairment. Narcolepsy involves daytime sleep attacks and features like excessive daytime sleepiness, not trouble with sleep onset or maintenance. Jet lag is a temporary disruption of the sleep–wake cycle after travel across time zones. NREM sleep is a stage of sleep, not a disorder. Insomnia best fits the described pattern of recurring sleep initiation or maintenance difficulties.