Few habits, which can help you, get peaceful deep sleep in the night

Keep the room temperature cool or warm depending on the weather.
Play light soothing music, which can help you in getting sleep if you suffer from sleep disorder.
Wear loose comfortable clothes.
Do not drink alcohol, tea or coffee at least 2-3 hours before your bedtime. It can affect your sleep badly if you consume any of such drink or beverage before going to bed even 2 hours before that.
If you don't get sleep easily, make it a habit to read a book or something, which makes you sleepy. Some people easily get sleep while watching television. It seems funny but if it helps you, you can give it a try.
Make your body tired, get massage, which helps you to get deep sleep.
Take hot shower, which relaxes the body and will give you peaceful sleep soon.
Drinking hot milk with a teaspoon of honey added to it is an old remedy and is quite helpful for a good sleep.
Always make it a point to go the bed at a same time. Soon you will start feeling sleepy at the same time.
Keep the lights of the room dim. Bright lights disturb the sleep.
Some medication tricks help in sleeping. You can learn them and give them a try. Some breathing exercises too help in getting good sleep.
In yoga here is a tip, which might help many of you in giving sleep. Press both your hands first finger tip with the tip of the thumb, while lying down comfortably on the bed and closing your eyes.
Start taking 10-15 minutes walk after your dinner and then go to bed. Tired body gets deep sleep.
Use soft cushions and comfortable bed for a comfortable sleep. At times even a non-comfortable bed or pillows disturb in sleep.
Wear ear buds if any noise in the house or room disturbs you.
Keep your muscles and body relaxed on the bed.
Try to keep yourself involved in something as reading or listening music if you get disturbed with all negative thoughts coming to your mind in your sleep.
Wear eye pads if light comes to your room, which disturbs your sleep.
Keep switches near your bed so that you don't have to get up again and again to switch on and switch off the lights, fan or air conditioner.
Prepare your bed and room temperature ready, lights dimmed and music on before you enter your room to sleep. Right atmosphere will make you ready to sleep soon.
So if you try any of the methods, you can definitely get help you your sleep is disturbed any of the reasons. But if the problem is serious and cannot be sorted out by any of such things or you suffer from severe insomnia that its time to go to a doctor for medical help. If you get disturbed by some past haunting memories or negative thoughts then go to a psychologist's help because sleeping peacefully for 7-8 hours is essential not only for your beauty but also for your mind and body.