QGetting a new job and have to deal with insomnia and getting up very early. Any suggestions?

I have the luxury of being self-employed as a web developer and I do most of my work from home, but a recent job offer will change all that. I have to be in the office at seven in the morning, and I am thinking that means I will have to get up at five and go to bed nine. This will be hard for me considering I am insomniac and though my medication helps me fall asleep it makes me sleep through the alarm clock and puts a drag on my morning. Anyone out there know how to deal with sleep issues such as mine. I take 100mg of Trazadone and 9mg of Melatonin each night to sleep, and I am used to getting up at eleven.