I don't have insomnia, but I seem to have problems staying a

I don't have insomnia, but I seem to have problems staying asleep for too long. I often wake up every 2 hours or so. I also have terrible problems with stress/depression so I was wondering if this might be the cause. If anyone has any remedies they would like to share, please let me know.

Ambien helps me fall asleep.... and doesn"t make me tired during the day