The superlative of charming is "most charming."
most charming
more charming (comparative) most charming (superlative)
Charmer
Charming
be charming
he was very charming to me !
More charming
He did not have an official name. His name was Prince Charming.
Sleep is a noun and does not have a superlative. Sleepy is an adjective and the superlative is "sleepiest."
cinderella, snow white, and sleeping beauty. they all married the charming brothers who lived in the charming palace with king charming and queen charming:) [i really don't know. i just made that up:)]
Verb
"Charming" is traditionally an adjective that describes someone or something as pleasant or attractive. However, it can also be used as a noun to refer to someone who possesses charm or charisma.
The superlative for willing would be "most willing." There is no one-word superlative.