10:55 P.M.: Catching Z's

Tossing and turning. Consider taking a sleeping pill. Price of Ambien is up 70% (wholesale) over the past three years, according to research firm Delta Marketing Dynamics.

Way to Play It: Shares of Ambien's maker, Sanofi-Aventis (SNY), have been hit by recent inroads made by generic drugmakers. Ambien has already been copied, and other major patents will expire in coming years. Who is benefiting from rising generic sales? Pharmacy benefits managers like CVS Caremark (CVS) and Medco Health Solutions (MHS). One of the top health-care sector funds, Blackrock Health Sciences Opportunity Fund (SHSAX), added CVS shares in the first quarter.