Please be advised that the following was written or last updated a while ago and may therefore contain outdated information or opinions I no longer hold. 请知悉下文自写作或上次更新已届相当时限，或包含过时信息及已摒弃观点。
由于睡前心理状态会影响睡眠质量和时间，「事多情况下睡过了」比「放松情况下自然醒」可能更能准确反映「维持正常精力的最小睡眠时间需求」，从为数不多几次情况看，这个值对我来说是 7 h