A confirmation study of effectiveness to sleep by suction of the aroma component of black tea

INTERVENTION: During 7 days of first term, suction the aroma component of black tea for 3 hours a day at bedtime under natural respiration. A day rest. During 7 days of second term, suction control for 3 hours a day at bedtime under natural respiration. During 7 days of first term, suction control for 3 hours a day at bedtime under natural respiration. A day rest. During 7 days of second term, suction the aroma component of black tea for 3 hours a day at bedtime under natural respiration. CONDITION: Not applicable PRIMARY OUTCOME: 1. OSA sleep inventory; 2. Pittsburgh Sleep Quality Index SECONDARY OUTCOME: 1. SCL30; 2. Activity level; 3. The incidence of side effects and/or adverse events. INCLUSION CRITERIA: