Your doctor will determine your dosage according to your condition, gender, and other health disorders. But the starting dose is 5mg-10mg for women and men. Therefore, if your doctor asks you to use Ambien 10mg, you can take it. Otherwise, you have to follow your doctor. One needs to take Ambien 10mg just before bedtime. Moreover, if you have time to sleep for 8-9 hours without interruption, only then consider taking it.