The word Slepwalking is misspelled against Sleepwalking, a noun meaning "Walking in one's sleep."
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Sleepwalking has double "ee" is mispronounced as "e"
Remember double 'EE' in between the strings Sl & pwalking which should not be misspelled with single 'E'
Wrong Spelling:  Sl-e-pwalking 
Correct Spelling:  Sl-ee-pwalking 
Find more wrongly spelled words of Sleepwalking to spell it well.