What causes nightmares during a nap?

1. Irregular作息: Irregular sleep schedules can easily disrupt the body's internal clock, thereby affecting sleep quality and increasing the risk of nightmares. 2. Poor napping environment: Factors such as a confined space, uncomfortable bedding, or noise disturbances may trigger nightmares during naps. 3. Psychological stress: Stress from work or daily life, if not effectively relieved, may manifest as nightmares during napping. 4. Physical condition: Physical discomforts such as indigestion or excessive fatigue may also lead to nightmares during daytime naps.