At age 22, Leisha is in her final year at Harvard Law School. She regularly consults with Kevin via Groupnet, a secure messaging server he built that most of the country's Sleepless use to communicate with one another privately. Leisha's primary interest in the Groupnet is as a tool to confer about underage Sleepless who may be suffering emotional or physical abuse at the hands of parents who can't handle having a Sleepless child. Whenever the group encounters an abuse case, Leisha advocates for a legal solution. Only once do the Sleepless resort to kidnapping, a move Leisha strongly opposes. The victim is Timmy DeMarzo, a four-year-old Sleepless rescued from his abusive parents in Wichita in an operation organized by Tony.

As Sleepless continue to post staggering achievements in the arts, business, and technology, the backlash from Sleepers grows. Moreover, Susan has determined that Sleeplessness is a dominant gene, meaning that the children of Sleepless will carry on that trait naturally. From Kevin, Leisha learns that Tony and Jennifer are buying land in the Allegheny Mountains of New York State to build a sanctuary for Sleepless, a move Leisha opposes on the grounds that Sleepers and Sleepless should not be segregated.