Most people fall asleep in seven minutes.(大多數人在七分鐘內就能睡著)

I know when you fall asleep.(我知道你的入睡時刻。)

Dr. Sasaki found, as expected, the participants slept less well on their first night than they did on their second, taking more than twice as long to fall asleep and sleeping less overall.(佐佐木教授發現，正如預期的那樣，志愿者們在第一個晚上的睡眠質量不如第二個晚上，他們入睡所需的時間是第二個晚上的兩倍多，總體睡眠時間也更少。)

I'll fall asleep if I don't get out of this stuffy room soon.(如果我不趕快離開這悶熱的房間，我會睡著的。)

I need some time to fall asleep.(我需要一些時間睡著。)

They will help you to fall asleep.(這些可以幫助你入睡。)

Lie down and relax, then you can fall asleep.(躺下來放松一下，然后你就能睡著了。)

I can't fall asleep tonight.(今夜我無法入睡。)

Go to the bed before you fall asleep.(在你入睡之前到床上去。)

Some people fall asleep easily, but then wake up time after time.(有些人很容易睡著，但是會醒很多次。)