这些有效的睡眠卫生技术能换来更多的睡眠时间。
These are proven sleep hygiene techniques that will hopefully translate to more hours of sleep.
睡眠是非同小可的一种技术；为此，我们必须醒着一整天呢。
No small art is it to sleep: it is necessary to keep awake all day for that purpose.
睡眠是非同小可的一种技术；为此，我们必须醒着一整天呢。
No small art is it to sleep: it is necessary to keep awake all day for that purpose.
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