super-sleeper

== English == === Alternative forms === supersleeper, super sleeper === Noun === super-sleeper (plural super-sleepers) One who is particularly good at falling asleep. An extremely efficient sleeper who does not require much sleep. A luxury vehicle that allows passengers to sleep. A high-performance car that has an unassuming appearance. Someone or something that does not seem very impressive at first but that goes on to become a star.