(CBS NEWS) About 60 million Americans a year struggle with insomnia. Now, a new study is trying to figure out what is the best treatment for people who can't fall asleep or stay asleep.

"It can take anywhere from 30 minutes to two to three hours to fall asleep. I will just lie in bed and toss and turn, and once I do fall asleep I tend to wake up," says Amy Hopkins, an insomnia patient.

The mother of two has insomnia. She is taking part in a study at National Jewish Health in Denver that is testing which insomnia treatments are best. Some patients have talk therapy to break bad habits such as using electronics before bed or not sticking to a sleep schedule.

"If they had a poor night they will actually sleep in in the morning and that keeps their biological clock off rhythm off," says Dr. Jack Edinger of National Jewish Health.

The study will enroll about 220 patients over the next two years.

Amy tried behavior therapy first and then took sleep medication for six months.

"The study helped me. I still have a lot of poor night's sleep, but I have had fewer poor nights of sleep," she says.

She still takes Ambien once a week but hopes the skills she learned in therapy will eventually be enough to get a good night's rest.

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