Which activity is NOT typically associated with sleep preparation?

Engaging in rigorous physical activity is not typically associated with sleep preparation because such activities can actually be stimulating and may inhibit the body's natural ability to wind down. Sleep preparation generally involves activities that promote relaxation and readiness for sleep. This might include tasks like making the bed to create a comfortable sleeping environment, determining the desired length of sleep to help establish a sleep routine, or setting an alarm clock to ensure wakefulness at a designated time. In contrast, rigorous physical activity increases heart rate and energy levels, which can make it more challenging to transition into a restful state necessary for sleep, thus making it an inappropriate choice when discussing sleep preparation activities.