You will need to be warm if you are going to sleep properly. If you don't like too many blankets on your bed, then what about hot water bottles, electric blankets or even bed socks? Stuffy bedrooms are difficult to sleep in, so make sure that there is plenty of ventilation. There are many things that may keep you awake at night. Pain, of course, will prevent sleep.
Many muscular aches and pains seem worse at night than during the day. If this is the case, ask your doctor if a couple of soluble aspirin or paracetamol tablets will help eradicate your pain permanently. Hunger can also keep you awake. Try a milky drink and a couple of biscuits at night, but try to avoid heavy meals, or meals containing lots of spicy food.
If you live in a noisy house or area, then earplugs may help (you can get these from your local chemist), or double glazing may cut down the amount of noise from outside.
Many articles taken from 'A word with the doctor', by Dr. John Windsor.