Draws from the avian form of roosting. You just lay down as if to take a nap but don't actually sleep. You just lay there to either rest up or to collect your thoughts.
Douglass: "Yo my playah-pimp Abdulai, what have you been doing for the past two hours"
Abdulai: "Oh man I've just been roosting on my roosting-accessible bed"
Douglass:"Why didn't you tell me you were gonna roost!"