Is It Really Bad to Share a Bed With Your Dog?

　　与狗狗共眠到底好不好?

　　The question: Family dogs often spend the night in their owner's bedroom. Might this affect people's sleep?

　　研究主题：狗狗睡在主人房间是否会影响睡眠?

　　In this study, the researchers assessed the sleep habits of 40 healthy adults (average age, 44) who had no sleep disorders and who had a dog older than 6 months (average age, 5 years) that slept in the bedroom.

　　此次研究对于40个健康的成年人的(平均年龄为44岁)，他们睡眠情况良好，并且养狗时间超过6个月(平均时间为5年)，平时狗狗和他们都睡在卧室。

　　For seven nights, the human participants wore an activity monitor on their wrist, and the dogs wore a similar device on their collar. People spent an average of 7.9 hours in bed and 6.7 hours asleep.

　　连续七天晚上，受试者手戴着活动监测仪，而他们的狗狗也会在脖子上佩戴相同装置。据观察，这些人每天在床上的时间平均为7.9小时，其中睡眠时间为6.7小时。

　　Sleep efficiency was worse if the dog was on the bed rather than elsewhere in the room: 80 vs. 83 percent. People also spent less time awake after initially falling asleep if their dog was not on the bed. The dogs' sleep efficiency was not affected by their location.

　　据观察，与狗狗共处一室时，人的睡眠效率为80%;而狗狗在别处时，人们的睡眠效率为83%。如果不与狗狗同床，他们进入睡眠状态所用的时间更短。而狗狗的睡眠效率与它们睡觉场所没有关系。

　　"A dog's presence in the bedroom may not be disruptive to human sleep, as was previously suspected," the researchers, all affiliated with the Mayo Clinic,reported.

　　梅奥医疗集团的研究成员说：“狗狗的在场对主人睡眠的影响并不如之前我们所想的那么大。”

　　Data came from a small number of participants for a short time. The study did not include people with more than one dog in their bedroom and did not include, for comparison, people who did not sleep with a dog in the bedroom. The findings do not apply to other pets, such as cats.

　　值得注意的是，本次调查的对象仅针对一小部分人，实验周期也比较短。研究没有包括那些在卧室里养多条狗的人，也未包括那些不和狗狗一起睡觉的人。本次研究结果并未推及其他宠物，比如说猫。