Ernie is a fictional character, a Muppet on the Public Broadcasting Service's long-running children's television show, Sesame Street. He and his roommate Bert form a comic duo that is one of the program's centerpieces, with Ernie acting the role of the naive troublemaker and Bert the world-weary foil. Ernie's birthday is February 28.
Ernie is well known for his fondness for baths with his Rubber Duckie, and for trying to learn to play the saxophone although he would not "put down the duckie." Ernie is also known for keeping Bert awake at night, for reasons such as wanting to play the drums, wanting to count something (like sheep), to observe something like a blackout, or even because he is waiting for his upstairs neighbor to drop his shoes.
He has a distinctive, chuckling laugh (a trait he shares with his baby cousin Ernestine).