Sedative sleeping pills can nearly double the risk for car accidents among new users compared with nonusers, a University of Washington study suggests. Researchers looked at prescription records and motor vehicle crash records of more than 400,000 Washington state drivers who had a drug benefit in the Group Health Cooperative insurance plan. Researchers found an increased risk of crashes for people taking Restoril (temazepam), Desyrel (trazodone) or Ambien (zolpidem). Via CBS News. Posted June 12, 2015.