Excellence Award in the 'Just Keep Writing 2019' competition

Have you ever heard of a sloth?
They are very slow and sometimes cough.
They are brown and have long nails,
They only move as fast as a snail.
Sloths are cool and know how to swim,
But they don’t usually win.
Rather for them to dance,
They would prefer to hang on a branch.
To live like a sloth would be crazy,
Just hang on the couch and be lazy.