Sleep is necessary for overall well-being. If you suffer from any sleep disorder you are at a greater risk of many health conditions. This is particularly true for pregnant women. If you are an expecting mom you need to get your required amount of sleep every night. Otherwise you may face some unwanted complications. Still birth is one such complication. It is established that smoking advanced maternal age diabetes obesity and drug abuse are a few risk factors for stillbirths. But now a study says that sleeping more than nine hours per night during pregnancy may lead to late stillbirth.