It doesn't mean you won't get any sleep, actually you'll sleep more. Fall asleep in the couch, sleep until noon, feel tired even when you're washing dishes or when you're talking on the phone. You will feel numb. Flat. When something doesn't go your way, you'll just shrug and think that was the way it was supposed to go, that you deserved it. Determined fatalism. You will start losing time, get used to it. There will be hours in the day unaccounted for. You won't remember what you did or where you were, they are just blank spaces of time. When people ask you how you are, you'll respond only with 'fine', 'much better, thank you' and 'I'm doing alright.' A soft, yet distant smile will accompany these answers. It won't stop people thinking you're weak and pitiful, but it will stop them asking questions. You don't have the energy to get into that. You will stop having dreams, making plans, enjoying a good time. You will lose interest and soon enough you will be alone.
Filling space, everything on repeat. You'll probably develop habits such as peeing in the shower, brushing your teeth everyday precisely at nine, writing letters to yourself, buying a cage-held pet, alphabetising your books, ... These are just examples, you're sure to develop your own. Odd details will grow in significance, holidays and important national events will be your guideline to order your life, put everything in place and perspective. You will find ways to justify your existence if you focus on little things. Television will be your window to the world of which you are a spectator. You'll be nothing more. You might try phoning in to one of their games which is on late at night or in the early afternoon, but they will never put you on. People will never meet your eyes or smile at you at the supermarket or in the post office. They will expect you to pay and leave. Any attempts to better yourself will fail. You know you'll never dye your hair, lose weight, buy new colourful clothes. Why bother thinking about it. If you live this way long enough, they will come to you.
At first a haunting silence. The refrigerator will stop making noise, the clocks will stop ticking and no more cars will drive by. Then at night, the voices will come. You won't understand them at first, but give it time. You should understand that they have chosen you. They waited for you to be ready. They want you to be quiet and to stay away from other people. They need you to be detached. Mentally blank. No needs or desires.
If you're ready, they will start showing you things.