The spelling of the word "sleeman" is quite straightforward when using the International Phonetic Alphabet (IPA) phonetic transcription. The correct spelling is /sliːmən/ as per the transcription. The initial "s" is pronounced as /s/, the following "l" as /l/, and the "ee" sound is represented by /iː/. The final "m" is pronounced as /m/ and the following "a" is represented by the schwa sound /ə/. Therefore, the correct spelling of this word in IPA is /sliːmən/.