The term SLEEPING PILL is a type of SEDATIVE, which is an 8-letter word. Sedatives are drugs that are used to reduce anxiety and induce sleep. They work by slowing down the central nervous system, allowing the body to relax and fall asleep. Sleeping pills are commonly prescribed to treat insomnia, a condition characterized by difficulty falling or staying asleep. They can also be used to treat other conditions such as anxiety, depression, and muscle spasms.