A few studies suggest that cognitive behavioral therapy for insomnia can be effective even when it is delivered in very low cost/low intensity ways:
A study of abbreviated cognitive behavioral therapy, administered by junior clinical psychologists in two sessions of 25 minutes in duration two weeks apart, showed significant benefit sustained for at least three months.  Self-help treatment by means of videotapes  or written material  has also proved beneficial.
That’s from “Chronic insomnia,” by Michael Silber.
18. Edinger JD, Sampson WS. A primary care “friendly” cognitive behavioral insomnia therapy. Sleep 2003;26:177-82.
19. Riedel BW, Lichstein KL, Dwyer WO. Sleep compression and sleep education for older insomniacs: self-help versus therapist guidance. Psychol Aging 1995;10:54-63.
20. Mimeault V, Morin CM. Self-help treatment for insomnia: bibliotherapy with and without professional guidance. J Consult Clin Psychol 1999;67:511-9.