Ambien is a sedative hypnotic that enables sleep deprived individuals to get adequate slumber at night. It offers instant relief and should be taken before bedtime when you are free to be able to sleep for 6-8 hours. It is the branded name of a generic medicine Zolpidem which is widely trusted by the insomniacs as a sleep aid. Ambien should be taken with a lot of precaution by patients suffering from complications of heart, lung and liver. Insomniacs can easily buy Ambien in UK from trusted drug stores without a doctor’s prescription.