The series is known as Nemurimehime in Japan where it’s serialized in Rakuen le Paradis since it began in June 2014.
That is, until she is roused from her slumber by a sleep spirit known as Nerim.
Plot concept: High school student Yaneko loves to sleep, so much that she can barely wake up of her own accord.
Fans of the Bunny Drop manga will definitely want to pay attention here as Seven Seas Entertainment has acquired the rights to bring out Yumi Unita’s Sleeping Beauty manga.