The Sleepy Stomp is a badge in Paper Mario: The Thousand-Year Door.

When equipped, for 2 FP, Mario can jump on his enemies and put them to sleep for a few turns. It costs 1 BP to put on. You have two options to get it. You can buy it at the Lovely Howz of Badges after Chapter 1 for 75 coins. Or, you can get by finishing 10 levels of the Pit of 100 Trials. The badge Sleep Stomp from Paper Mario is exactly the same, the only difference is the name.

Sleep Stomp in Paper Mario