Indeed. Most of us suffer from work-related stress issues, which in turn lead to sleep problems, particularly after one crosses the mid-30s.

What has worked for me is a gym routine in the evening, avoiding browsing the iPad in bed at night, firing up a long podcast to listen to (something without music, loud noises etc). But meditation has been another big factor. Though I must caution you: meditation rarely has a quick payoff. So be patient and don't get anxious about results and keep working at it.