It has been significantly agreed by sleep experts that many people can eliminate insomnia by trying to improve sleep hygiene, with which the scientists call, the pattern of behavior that influences how well we sleep each night.  Here's what they suggest to get the ZZZs you need:

Reduce, if you are overweight.  Breathing and sleep quality can be impaired by fat.  Conversely, lack of sleep hormones that regulate feelings of hunger and fullness.  It is shown in the studies that poor sleepers, male and female, weigh more than good sleepers.

Make bedroom a sleep sanctuary.  I'll bet a hypoallergenic pillow that your bedroom is more of a multipurpose room than a sleep zone. Use your bed for sleeping and sex only, get the television and computer out of the bedroom and resist the urge to make it an office.

Day and night and routine should be established.  Go to sleep and get up at the same times every day, even weekends. If you vary by more than 90 minutes, you risk throwing off your entire sleep schedule.

Do exercise regularly, but be sure that it is not closer than three hours before bedtime.  The same goes for eating spicy foods before bed.

Stress reduction is important. Pass up pre-bedtime activities that will raise levels of anxiety, including work tasks that are stressful, bill-paying or watching or reading scary material.
 
Get a partner. Of course, it has to be the right one or you'll lose sleep over that!