Objective. To evaluate if there is a relation between quality of life and quality of sleep in pregnant women. Method. This was a crosssectional study which participants were selected at Ipiranga Hospital and applied an evaluation form, Pittsburgh Sleep Quality Index (PSQI), questionnaire of quality of life (SF-36), and was given a booklet of guidelines of sleep hygiene. Inclusion criteria was pregnancy; exclusion criteria was hearing loss, sleep disturbance, prior night occupation, neurological damage and that was not doing prenatal care. Results. 51 volunteers participated in the work, of which 32 were in the third trimester and 10 in the second trimester, the average age was 25,3 (±6,3) years, and 70% of the entire sample had poor sleep quality. It was also observed that multiparous pregnant women had worsening in sleep and quality of life. Conclusion. There was no correlation between quality of sleep and quality of life in pregnant women. But it was worst in the second trimester of pregnancy.