Can You Enter Another World Just by Sleeping? Then I'm Invincible

As long as some people on the earth sleep, their consciousness will reach another world. There is magic and abilities here. People choose any mythology as their own abilities. Starting from level one and ending at level 100, each level corresponds to a certain name and a certain ability in the mythological system you choose. But every throw of fate predicts the outcome early. This disaster will happen to everyone, no one will be spared. When the earth only has "five years" left in its lifespan, everything is as normal as usual with a hint of weirdness. The world will merge and everything will reappear. As a god or a human, where should you go?