sleeping pill, a pill containing medication that induces sleep. Benzodiazepines such as temazepam (Restoril) and triazolam (Halcion) have for the most part replaced barbiturates as drugs of choice for insomnia. Imidaopyridines, such as zolpidem tartrate, are also sometimes used for short-term treatment; they are nonbenzodiazepines but work by acting on benzodiazepine receptors.