- Primary insomnia: 15 screened, 10 randomized over 1 month
- Chronic insomnia: 10 screened, 10 randomized over 4 months
- Excessive daytime sleepiness (EDS) associated with narcolepsy: 14 screened, 11 randomized over 6 months
- Excessive sleepiness associated with shift worker disorder (SWD): 7 screened, 7 randomized over 4 months
- Obstructive sleep apnea (OSA) associated with narcolepsy: 6 screened, 5 randomized over 1 month
- PSG plus outpatient study: 22 screened, 20 randomized over 6 months
- Restless legs syndrome: 34 screened, 19 randomized over 7 months