房主大人我给你翻译试一试,只是大概意思,谅解下~As you sleep,you pass through a sequence of sleep states,light sleep ,deep sleep and REM sleep,and that repeats approximately every 90 minutes. 当你睡觉时,你会连续通过3个阶段,轻觉(刚刚睡着时),熟睡(睡了一会儿了)和深睡(只有这个能让大脑得到最好的休息,正规的解释词忘了),这些阶段大概每90分钟会重复下。The points in that cycle at which you wake can affect how you feel later,and may even have a great impact than how long or little you have slept。你在哪一个阶段醒会影响到你醒来后的心情,也许这比你睡了多长时间更有影响。Being wakened during a light phase means you are more likely to wake up cheerful and full of life and interest. 如果你是在轻睡时醒来,你会觉得很愉快,很有活力和很有好奇的意念。看着喜欢就采用吧嘿嘿