Overview A Study to Evaluate Next Day Effects of MK-4305 on Driving Performance (MK-4305-035 AM1) Status: Completed Trial end date: 2011-11-01 Target enrollment: Participant gender: Summary This is a study to evaluate next-day residual effects of MK-4305 on highway driving performance in healthy, non-elderly participants. Phase: Phase 1 Details Lead Sponsor: Merck Sharp & Dohme Corp.Treatments: SuvorexantZopiclone