Kirby's Pad is where Kirby lives in Kirby's Epic Yarn. It is Apartment 101 in Dom Woole's apartment building in Quilty Square of Patch Land. Kirby can customize it as much as he wants as long as he has furniture.
Player 2 needs to be present for Prince Fluff to visit Kirby's Pad, and Zeke, Beadrix, Carrie, Buster, and Mara have a chance to visit Kirby's Pad after completing any level, including previously completed ones, as long as their apartments have already been unlocked. There is little interaction between Kirby and the visitors, however, but Kirby and Prince Fluff can still stand on and throw each other around. The other visitors show a minor reaction when hit with the yarn whip but mostly float about minding their own business despite their greeting revolving around asking Kirby whether he has time to play with them. After all of the minigames given by either Zeke, Beadrix, Carrie, Buster, or Mara have been completed, that character will give Kirby his/her secret fabric during his/her next visit to Kirby's Pad. The secret fabrics all have the motif (image) of the character giving it to Kirby.
Pressing ↓ in Kirby's Pad will have Kirby sit down instead of crouching, and he will doze off after a while and wake up on his own. Kirby's Pad is the only place where Kirby can sit down and sleep in the game. The only way to crouch in Kirby's Pad (for screenshots etc.) is to initially have Kirby moving, then holding ↓, and then releasing the ← / → keys.
Although strictly not transformations, the game selection screen features Kirby sitting down and sleeping alongside his regular and not-so-regular transformations, with the exception of pendulum and top.