Forced to do nothing

Bruno, my old friend, had eye surgery. Afterward, the instructions were that he had to lie face down on the sofa as much as possible and do nothing. Why? I've forgotten. But I remembered Bruno saying: It's actually nice, this life as a chaise longue existence, without a to-do list. Go shopping, take out the trash, make dinner? Sorry, my dear, I have to lie here, stare at the floor, and work through a nothing-to-do list.