Do you have insomnia? It is a condition in which the individual cannot complete their full night's rest. You can buy Ambien online and use it as a treatment for insomnia. When a patient has insomnia, they may go through any two experiences. Either the patient may not sleep at all during the night, or they may wake up mid sleep throughout the night. The reason why people use Ambien is due to its efficiency in inducing sleep. This medicine is from the medicine group known as Sedative hypnotics, which works on the brain by providing a calming and soothing effect that induces sleep.