Complex sentence: Both consumption of a large meal just before bedtime, requiring effort to metabolize it all, and hunger have been associated with disrupted sleep; clinicians may recommend eating a light snack before bedtime.
Split into simpler sentences: Both consumption of a large meal just before bedtime, requiring effort to metabolize it all, and hunger have been associated with disrupted sleep. Therefore for some people that struggle with this, clinicians may recommend eating a light snack before bedtime.