Slow wave sleep is enhanced following afternoon exercise. Chronic bedwetting in children is frequently treated with prescription drugs. Nightmares are more common within the first two hours of sleep. Obesity is a contributing factor in obstructive sleep apnea. Most children with obstructive sleep apnea are obese males.
Boys are more likely than girls to experience enuresis.
Major depression is often associated with earlier timing of the nighttime sleep period. Antihypertensive drugs may cause sleeping difficulties as a side effect. Early morning awakenings in the elderly are associated with changes in the timing of their biological rhythms. Alcohol can be beneficial in reducing the effects of jet lag. A favorite toy or blanket may aid toddlers with sleep onset difficulties.