For Lisa Hanson, a stay-at-home mother in San Francisco, the alarm that used to rouse her out of sleep most mornings was the sound of her toddler.对于丽萨.汉森这位日常旧金山的全职母亲来讲，常常在早上把她从睡梦中叫醒的就是她一岁的儿子的发出的声音了。He wakes up at 5:30 screaming sometimes, she said. It would jolt me awake, and then Id be miserable and groggy all morning because Id be woken up when Im in my deepest sleep.他早上5：30就醒了，有时还哇哇大叫，她说，他的尖叫把我震醒，然后整个早上我都感到痛苦眩晕，由于我都是在熟睡的时候被叫醒。But last month, Ms. Hanson started using a new program, the Renew Sleep Clock, an iPhone app that keeps track of her sleep. Its makers, GEAR4, say that the app uses radio sensors to detect breathing patterns and movements at night, then uses that information to wake a person at the lightest point of sleep, the optimal time to wake up. The theory is that awaking from light sleep, as opposed to the deep stages of sleep, helps reduce so-called sleep inertia, the cloud of grogginess and impaired alertness that makes people desperately want to crawl back into bed. The app also acts as a sort of sleep adviser, giving Ms. Hanson guidance about the amount of shut-eye to shoot for and ways to get there.但上个月，汉森女性开始用一种新型软件，睡眠更新钟，一款iPhone 应用可以追踪用户的睡眠。这款应用的研发团队GEAR4说睡眠更新钟用无线遥感器以监测用户夜晚的呼吸模式和行动，下面借助采集的信息在用户睡得最轻的时候把用户叫醒，也就是最佳的起床时间。这个理论，即在最轻度睡眠时把用户叫醒，与深度睡眠相反，能够帮助减少所谓的睡后迟钝、由睡眠不足引起的身体衰弱和警惕度受损，而就是这类情况叫人们迫不及待地想要爬回床上。除此之外，睡眠更新钟还起到了睡眠咨询师有哪些用途，告知汉森女性需要多少双眼开合的次数与怎么样达到这一数字。Since Ive been using it, I do feel better, Ms. Hanson said. Its waking me up in a more ideal stage of sleep and helping me have that much better of a day.自从开始用这项应用，我确实感觉好多了，汉森女性说，它让我在更为理想的状况下醒来，让我在下面的一天来过得更好。The Renew Sleep Clock, which cosplayts $199, is the latest addition to a new generation of smartphone apps designed to analyze and improve sleep patterns. While experts have warned for years that gadgets like smartphones are increasingly disrupting sleep by keeping us connected 24/7, these programs claim to do the opposite. Two other products that have gained followings are the WakeMate , a wristband worn at night that wirelessly transmits data to the users smartphone, and the Zeo Sleep Manager-Mobile , which uses a sensor-equipped headband to collect data about the users sleep habits.价值199USD的睡眠更新钟是新一代智能手机应用的附加品，其设计目的就是剖析及提升睡眠模式。然而专家们多年以来都在警告大家，像智能手机如此的小机器正在愈加多地扰乱大家的睡眠，由于它们使大家每时每刻都被连接，尽管这类软件声称的与此相反。另外两种具备相似功能的应用是起床伙伴（价值59.99USD）和Zeo睡眠移动管理（价值99USD），其中Zeo用了装有感应器的头带用以采集用户的睡眠习惯。While all the apps vary, they generally work by having users pick a window of time in the morning - typically 20 to 40 minutes long - during which they would like to get up, then nudging the sleeper awake at the lightest point of sleep in that window. Sleepers get a score each morning that factors in the number of hours they slept while adding and subtracting points for things like disruptions and the percentage of time spent in the deep, restorative stages of sleep. The programs also let users keep track of daily habits like caffeine intake, exercise and meals, among other things, so they can see which habits might be affecting their sleep.尽管这种应用多种多样，但工作原理基本上都是让用户在早上选择一段想起床的时间，大约20到40分钟，然后这期间内，在用户睡得最轻的时候把他们叫醒。睡眠者天天早上都会得到一个分数，这个分数主如果由他们睡眠时间所影响，同时考虑其他原因对分数进行加减，如用户遭到的干扰和处于深度修复睡眠阶段的时间所占的比率。这种软件还让用户记录平时习惯，如咖啡因的摄入量、训练习惯和饮食习惯等等，如此就能获悉用户的那些习惯会干扰其睡眠。But while some people swear by these tools, scientists caution that the claims they make and the advice they dole out to users may not be very sound.尽管一些人认同这类软件时，科学家却提醒说这类软件给用户的承诺和建议可能没说得那样好。
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