Analyzing her "Midnight Poem" is a favorite pastime, there has been attempts by astronomers to pinpoint the date of this night, the latest I know is a paper from 2016 (https://dhayton.haverford.edu/wp-content/uploads/2016/05/Sap...). From this paper, here's the poem in Ancient Greek and three translations:

    ἐδυκε μὲν ἀ σελάννα     καὶ πληΐαδες μέσαι δε      νύκτες, πα ὰ δ‘ ἔ χετ‘ ὤ α,      ἔγω δὲ μόνα κατεύδω      The Moon hath left the sky;      Lost is the Pleiads‘ light;     It is midnight     And time slips by;     But on my couch alone I lie.      (Symonds, 1873–1876).      The moon has set, and the Pleiades;     it is midnight,     the time is going by,      and I sleep alone.      (Wharton, 1887: 68).      The silver moon is set;     The Pleiades are gone;     Half the long night is spent, and yet      I lie alone.     (Merivale, 1838: 226). 

There has been criticism on the methodology used, e.g. (https://rogueclassicism.com/2016/05/16/problems-with-the-sci...). A good collection of her poems with modern translations is (https://www.amazon.com/If-Not-Winter-Fragments-Sappho/dp/037...)