Sleper or Sleeper: How To spell?

The word Sleper is misspelled against Sleeper, a noun meaning "A large fresh-water gobioid fish (Eleotris dormatrix)."

Sleeper has double "ee" is mispronounced as "e"
Remember double 'EE' in between the strings Sl & per which should not be misspelled with single 'E'
Wrong Spelling: Sl-e-per
Correct Spelling: Sl-ee-per
Explore spell check of Sleeper to spell without errors.