Evaluating the Effects of Tasimelteon vs. Placebo on Jet Lag Type Insomnia

Inclusion Criteria: * Ability and acceptance to provide written consent, fluent in English; * Healthy subjects with no medical, psychiatric or current sleep disorders; * Men or women between 18-75 years; * Body Mass Index of ≥ 18 and ≤ 30 kg/m2. Exclusion Criteria: * Major surgery, trauma, illness or immobile for 3 or more days within the past month; * Pregnancy or recent pregnancy (within 6 weeks); * A positive test for drugs of abuse at the screening or evaluation visit.