The topic Sleeping Beauty Syndrome you are seeking is a synonym, or alternative name, or is closely related to the medical condition Kleine-Levin Syndrome (KLS).

Quick Summary:

• Hypersomnia means excessive sleepiness. Even after taking long naps, the individual does not feel rested. There are two types of hypersomnia:
  • The first type is called primary hypersomnia, also called idiopathic hypersomnia
  • The second type is called recurrent hypersomnia, also called primary recurrent hypersomnia
• Kleine-Levin syndrome (KLS) is a very uncommon sleep disorder. In addition to sleepiness, individuals also have compulsive overeating and hyper-sexuality
• In primary hypersomnia, the excessive sleepiness happens over a period of many months, or sometimes, even for many years. The excessive sleepiness occurs without periods of normality.  In the recurrent type of hypersomnia the symptoms last for many years, but the individual is symptom-free for a period of time (which can last up to months), between episodes of hypersomnia. This normal sleep period between periods of excessive sleep is very characteristic of Kleine-Levin Syndrome
• Excessive sleep occurs during the day, which is called excessive daytime sleepiness. Due to this excessive daytime sleepiness, the individual is forced to take naps during the day, which interrupts one’s daily routine. Also, a frequent nap during the day does not refresh the individual
• KLS is a very unusual disorder. The signs and symptoms begin slowly. In some individuals the symptoms may either gradually worsen over a period of time, or they may get better over time

Please find comprehensive information on Kleine-Levin Syndrome (KLS) regarding definition, distribution, risk factors, causes, signs & symptoms, diagnosis, complications, treatment, prevention, prognosis, and additional useful information HERE.