Which self-care technique is appropriate for a patient experiencing stress-related insomnia?

Taking a warm bath before going to bed is an appropriate self-care technique for a patient experiencing stress-related insomnia. The warmth from the bath can help relax the muscles and soothe the mind, creating a calming effect that can ease the transition to sleep. This practice can also lower the body's core temperature after exiting the bath, which can signal to the body that it is time to sleep, further enhancing sleep quality.

In contrast, ingesting caffeine before bed is counterproductive as it is a stimulant that can interfere with the ability to fall asleep. Taking a cold shower, while refreshing, may increase alertness and not provide the soothing effect needed for relaxation before sleep. Engaging in vigorous exercise at night can lead to increased adrenaline levels and heightened heart rate, which are not conducive to promoting sleep. Therefore, the warm bath serves as a soothing and relaxing pre-sleep routine, making it the most suitable choice for addressing stress-related insomnia.