Zolpidem is a non-benzodiazepine hypnotic that is commonly used to treat insomnia. It works by binding to the GABA_A receptor and potentiating the effects of GABA, which results in sedative and hypnotic effects.

Drowsiness is a common side effect of benzodiazepines, which can impair cognitive and psychomotor function. Other common side effects include nausea, headache, and constipation.

Modafinil is a wakefulness-promoting agent that is commonly used to treat narcolepsy. It works by inhibiting the reuptake of dopamine and norepinephrine in the brain, which results in increased wakefulness and alertness.

Pramipexole is a dopamine agonist that is commonly used to treat restless legs syndrome. It works by binding to dopamine receptors in the brain and stimulating dopaminergic activity, which results in decreased symptoms of restless legs syndrome.

Continuous positive airway pressure (CPAP) is a common treatment for sleep apnea. It works by delivering pressurized air to the throat through a mask, which helps to keep the airway open during sleep.

Nasal congestion is a common side effect of CPAP therapy, which can be caused by the pressure of the air being delivered through the mask. Other common side effects include dry mouth, skin irritation, and claustrophobia.

Clonazepam is a benzodiazepine that is commonly used to treat sleepwalking. It works by binding to the GABA_A receptor and potentiating the effects of GABA, which results in sedative and hypnotic effects.

Drowsiness is a common side effect of clonazepam, which can impair cognitive and psychomotor function. Other common side effects include nausea, headache, and constipation.

Prazosin is an alpha-1 adrenergic antagonist that is commonly used to treat nightmares. It works by blocking the effects of norepinephrine, which can help to reduce the frequency and severity of nightmares.

Dizziness is a common side effect of prazosin, which can be caused by the sudden drop in blood pressure that can occur when taking the medication. Other common side effects include headache, nausea, and constipation.

Clonazepam is a benzodiazepine that is commonly used to treat REM sleep behavior disorder. It works by binding to the GABA_A receptor and potentiating the effects of GABA, which results in sedative and hypnotic effects.

Drowsiness is a common side effect of melatonin, which can impair cognitive and psychomotor function. Other common side effects include headache, nausea, and constipation.

Topiramate is an anticonvulsant that is commonly used to treat sleep-related eating disorder. It works by inhibiting the reuptake of glutamate and GABA in the brain, which can help to reduce the frequency and severity of sleep-related eating episodes.

Drowsiness is a common side effect of topiramate, which can impair cognitive and psychomotor function. Other common side effects include headache, nausea, and constipation.

Lithium is a mood stabilizer that is commonly used to treat Kleine-Levin syndrome. It works by inhibiting the reuptake of serotonin and norepinephrine in the brain, which can help to reduce the frequency and severity of Kleine-Levin episodes.