The length of sleep on 2 tablets of diazepam is related to whether or not you have taken diazepam in the past, the length of time you take it to your own sensitivity to the drug, and you can generally sleep for about 8-10 hours, which varies from person to person. Diazepam is a benzodiazepine anxiolytic, oral diazepam is quickly and completely absorbed, generally 0.5-2 hours blood concentration reaches a peak, 4-10 days blood concentration tends to steady state. Diazepam is mainly used for insomnia, better for insomnia with anxiety patients, can be used for anxiety disorders and various functional neurological disorders, control of grand mal seizures, petit mal seizures and status epilepticus, also used for a variety of convulsions, tension headache, alcohol phase syndrome, preanesthesia administration, etc.. However, it should not be used arbitrarily on its own, and should be taken under the guidance of a doctor. Attention should be paid to glaucoma, severe muscle weakness, granulocytopenia, hepatic and renal insufficiency should be used with caution, and avoid using it for working at height and motor vehicle drivers, elderly people, infants and infirm people should also be used with caution.