Taking a warm bath before bedtime can have both physical and psychological effects that may positively impact sleep. A warm bath can help raise your body temperature. As you soak in warm water, your blood vessels dilate, allowing more heat to escape from your body. Once you step out of the bath, your body temperature starts to drop, signaling to your body that it's time to wind down and prepare for sleep. This mimics the natural drop in body temperature that occurs as part of the sleep-wake cycl