What common recommendation is made for improving sleep hygiene?

Establishing a bedtime routine is a widely recognized recommendation for improving sleep hygiene because it helps signal to the body that it is time to wind down and prepare for sleep. A consistent routine can include calming activities such as reading, taking a warm bath, or practicing relaxation techniques, which can promote a more restful state before sleep. This predictability and sense of safety created by a routine can help reduce anxiety or hyperarousal, making it easier to fall asleep and improve overall sleep quality.

The other choices do not align with best practices for sleep hygiene. Engaging in physical activity before bed can sometimes energize the body rather than relax it, thereby potentially disrupting sleep. Heavy meals can cause discomfort and digestive issues that interfere with falling asleep. Lastly, while napping can be beneficial in moderation, extended periods of napping during the day can lead to difficulty falling asleep at night by disrupting the natural sleep-wake cycle. Thus, establishing a bedtime routine is a foundational practice for fostering better sleep health.