Results Overlap syndrome had increased number of WASO(wake after sleep onset),fallen asleep the incubation period shorten,sleep apnea time was long,and the noctarnal hypoxemia was obvious.

• 结果重叠综合征患者觉醒次数增加,入睡潜伏期缩短,睡眠呼吸暂停时间长,夜间低氧血症明显。