Health is not an adjective and therefore does not have comparative and superlative forms.Healthy, however, is an adjective, with the comparative form of healthier and the superlative form of healthiest.
Assuming you meant to ask about the word "healthy," the superlative is "healthiest."
healthier, healthiest
healthier, healthiest
healthier, healthiest
healthier, healthiest
heathy
The comparative form of "well" is "better" and the superlative form is "best."
Sleep is a noun and does not have a superlative. Sleepy is an adjective and the superlative is "sleepiest."
The superlative for willing would be "most willing." There is no one-word superlative.
"Studying" is not a superlative, as it is not an adjective. "Most studious" is a superlative of "studious."
"Bib" is a noun and, as such, does not have a superlative form.