OBJECTIVES: Sleep disorders are more frequent recently among workers due to negative work environment and working in shifts. Our aim is to measure the occurence of insomnia among industry and health care workers, and to prove the effictiveness of sleep hygiene guidance and other complementary techniques.  METHODS: A prospective, qualitative survey with non-probability convenience sampling was performed in an assembling department of an electronic company (n=112) and in the City Hospital of Keszthely, Hungary (n=102) (N=214). Inclusion criteria was the to be 18-62 years old. Workers with severe depression, anxiety disorders or psychiatric co-existing disorders, and workers being treated with diseases that affect sleep (diseases of somatic system, internal organs, neurological disorders) were excluded. For measurement we used Athens Insomnia Scale. People struggling with insomnia (n=34) were participating in a training about sleep hygiene, simple behavioral therapy techniques and progressive relaxation. Descriptive statistics, T-test and ANOVA was calculated (p<0,05) with SPSS 17.0 program RESULTS: