It's delivered over four weeks, but what really is involved is a single in-person session—and we have done it by phone or by Skype as needed—where we provide people with basic education about sleep physiology: what the mechanisms are that control sleep, and how we can change some behaviours while we're awake to facilitate alignment of these mechanisms that control sleep to improve sleep quality. Those are very simple, straightforward treatments. They are called stimulus control and sleep restriction. They do need to be personalized to work well, but we can provide the education and personalize the strategies in less than an hour with an in-person session.
On November 26th, 2013. See this statement in context.