Sleep latency changes following behavioral interventions for sleep-onset insomnia are only moderate because the majority of insomniacs do not achieve good sleeper status at posttreatment. This study evaluated the efficacy of a multifactor behavior intervention consisting of stimulus control and relaxation-response training (n = 10) compared to stimulus control alone (n = 10) for sleep-onset insomnia. Only the multifactor subjects' mean posttest sleep latency fell within the good sleeper range. They also exhibited a 77% improvement on mean sleep-onset latency compared to the stimulus control group (63%). Thus a multifactor intervention may be more effective than stimulus control alone for treatment of sleep-onset insomnia.