Restoril (temazepam) is a prescription medication primarily used to treat insomnia, helping individuals with difficulty falling or staying asleep. It belongs to the benzodiazepine class of drugs, which work by calming the brain and central nervous system. Restoril is effective for short-term relief of sleep disturbances, typically prescribed for no more than 7-10 days. It can also help with anxiety in some cases, but long-term use is generally not recommended due to potential dependency risks.