Peter went to sleep, dreams entered his head. The Infinity Watch on his wrists, as he didn't think of what would happen if he had left it on. The Mind Stones has many powers, especially of telepathy and telekinesis, but it also increased the intelligence and thought processes. The gem was linked with the collective conciousness of all minds and intelligences. Which is what Peter's dreams were more brilliant and vibrant then normal. However, in his relaxed state, his ability to control his thoughts were no existent. Desires and wishes bubbled up from his id as he wished for a world without the stresses and Parker luck of his own normal superlife.
The one thing all of these dreams had in common were beautiful women, made up of any and all beautiful women he had seen or met, being part of his personal harem. But the styles and types of dreams were different, and as Peter dreamed, the other stones aided the Mind Stone in rewriting this reality.
One was Peter as Spider-man as the premiere member of his own personal Avengers team... made up of all the beautiful heroines and villainesses. Fight evil male villains and protecting the people of Earth.
He also had the opposite dream of being a criminal mastermind without a lick of responsibility to use his powers properly, again a harem of beautiful women made up of superwomen as his army-harem.
Another was the idea of himself as a God-Emperor of the Earth, with all life on or connected with Earth worshiping, loving and obeying him.A harem of all the beautiful women in the world in his city-palace of New York.
There was the dream of being the only man on a world where everyone else is a beautiful and sexy women, including people who were men in his world.
He had many dreams as the world shifted, even coming back to some of the previous ones, till her woke up in the world created from this dream.