Untranslatable pun. It's Morelull's Japanese name, Nemashu but with the character for sleep for the 1st letter. Morelull's Japanese name already sounding like a slurred '[I'm] going to bed'.

Catloaf said:

Untranslatable pun. It's Morelull's Japanese name, Nemashu but with the character for sleep for the 1st letter. Morelull's Japanese name already sounding like a slurred '[I'm] going to bed'.

Hope my localization works...