Youe are told that tonight you will suffer a nightmare worse than any experienced by anyone in history. You will be traumatized beyond comprehension. You are presented with this button that will make that not happen

If pressed the button will give you a dream. A dream so good everything after will feel empty. A dream better in every way than reality by ten fold at least. A world where you have what you want. Be it fame, riches, someone who loves your truly. But you will wake up. And it will all be gone. You will know none of it is real.