Even after two years, it’s still hard for Lyle Fenner, 94, to sleep in a different bed than his wife. So every night between 10 and midnight, the longtime KQEN radio announcer calls the reception desk of Callahan Court, where Helen Fenner, 91, receives round-the-clock care for her late-stage Alzheimer’s. It’s usually graveyard-shift aide Sylvia Ramirez who picks up the phone. She reassures Lyle when Helen is comfortable and sleeping soundly, which is most nights. Helen used to get restless every night, right after she moved to Callahan Court. But Lyle hasn’t let her face this alone. “I just wish …