Lying down at night leads to fluid from the legs to be returned back into the bloodstream allowing the kidneys to process back through the urine. Unfortunately for suffers of congestive heart failure, this means frequent urination especially in the night. It helps to use the bathroom before you go to bed as well as limited drinking liquid before bed. Lying down before you decide to sleep can also help drain fluid early rather than having to get up frequently in the night to use the toilet. This symptom can be frustrating, especially for those who struggle to get enough sleep in the night to rise early.