Pregnant women who go to bed at 11:00 p.m. are generally not considered to stay up late, to ensure that the quality of rest can be. At night, the various organs of the body need to fully rest, should try to maintain a regular routine, every day around 11 o’clock to sleep, sleep quality is high if there is no problem. If a pregnant woman goes to bed late and sleeps poorly during pregnancy, it will affect her health and may lead to endocrine disorders, reduced immunity and other conditions, which may affect the development of the fetus. It is recommended that pregnant women regular work and rest, to ensure adequate sleep, avoid staying up late, you can take a proper lunch break at noon, to create a healthy maternal environment for the fetus. Regular pregnancy checkups should also be conducted to understand the development of the fetus in the uterine cavity and to ensure healthy growth of the fetus.