Lore

The Big Comfy Couch has very intricate lore, an interconnecting web of plot threads and character interactions that lead to the most complex sphere of lore to ever exist in this material world. We will now break down the lore point-by-point.
 * 1) The couch itself has infinite space inside it. Loonette exploits this by pulling out a multitude of items from it. We can only imagine what lurks in its depths. A god? Gods? If so, they are surely dead.
 * 2) Granny Garbanzo is the sole arbiter of law in Clown Town. Her origins are unknown, but we do know that she comes from the "Old Country," which is likely similar to Yharnam and may in fact be Yharnam itself, as evidenced by Granny's love of blood.
 * 3) Clown Town's size is unstable. The town itself (and, indeed, the pocket universe in which the show exists) could be the titular house from House of Leaves or perhaps the TARDIS from Doctor Who. Whatever it is, it is everchanging and powerful.
 * 4) Major Bedhead has the title of Major, but how he got it is uncertain. Fighting in a war is likely, which means Major Bedhead might be complicit in war crimes.