Sleeping pills - e.g. benzodiazepines or "Z" drugs such as zaleplon or zopiclone - used in the case of sleep disorders do indeed make it possible to get a good night's rest. However, these drugs must be used with great caution and should be taken for as short a time as possible. The risks associated with the use of sleeping pills arise from the development of tolerance to these drugs, the risk of addiction to them and several other aspects.