Answer :
They sleep buried under sand, right side up so they are aware of predators
This means that they don't exactly sleep but they stay aware of predators
This means that they don't exactly sleep but they stay aware of predators
From what I have learned about stingrays... They don't exactly "sleep" But they do go in a state of awareness when they "sleep" They sleep anytime they want (its not like they can tell time lol)