My friend Zuzana sang this beautiful ancient Slovakian lullaby. Here's an English translation:
Black eyes, go to bed
Black eyes, go to bed 'cause you have to wake up early in the morning
'Cause you have to wake up early in the morning
Morning, morning, morning
Morning, morning, morning when the sun rises
When the sun rises
The sun is already up
The sun is already up, and my lovely girl isn't coming
And my lovely girl isn't coming
The sun is already up, and my lovely girl isn't coming
My lovely girl isn't coming
Now that I know the lyrics, it seems sadder than before :'(