睡觉的英文加ing

　　I sleep with the window open unless it's really cold.

　　天气若不很冷，我总开着窗户睡觉。

　　He works at night and sleeps during the day.

　　他晚上干活，白天睡觉。

　　How long can a human being go without sleep?

　　人不睡觉能活多久？

　　He took a long time getting to sleep that night.

　　他那天晚上过了好长时间才睡着。