lián xù jǐ tiān méi shuì hǎo / tā gǎn dào tóu nǎo mí luàn / wú fǎ jí zhōng zhù yì lì

连续几天没睡好，他感到头脑迷乱，无法集中注意力。

After several days of poor sleep, he felt confused and unable to concentrate.