Introduction The work in atypical and cyclical schedules is becoming more and more current with the authorisation of night work of women and the continuous work of many companies. Regular and prolonged night work can have important repercussions, also on the health of employees and on their living conditions.

Methods This is a cross-sectional descriptive study that aims to analyse the constraints, conditions and effects of night work on women using a questionnaire distributed on 50 production operators all working in shift at night (23 hour 00–07 hour 00) with bearing system 3×8 in an automotive cabling company in Kénitera Morocco.

Results Of the 50 operators questioned the average age is 37 years, Having 6 years of average professional seniority. 62% start work between 00:00 and 05:00 in the morning and only 24% finish their work before 03:00 in the morning. 92% of the operators report difficulty falling asleep, 82% have a disturbed sleep while 88% say that the rhythm of life impedes their social life. 90% of women have digestive disorders, 60% of which eat at irregular hours.

Discussion Many studies show that women would have more sleep deficit than men due to home bonds these results are identical to our study, since there is a high incidence of sleep disorders this can be explained that all the interviewees are female. According to Knutsson A, gastrointestinal disorders such as abdominal pain and problems of diarrhoea and constipation are more common in irregular workers than in day workers, these are similar with our study, since 90% of women present digestive disorders.

Conclusion In the light of new scientific contributions, a legal framework for night work in general is particularly necessary for women to improve working conditions and to prevent their harmful effects.