Verified answer

You can definitely write it in italics, but what I do is I write any dreams in present tense, while the rest of the book is in past tense, something I picked up from reading The Maze Runner series.

I sometimes do, but on a few books I've read that contain dreams/flashbacks, they do something different to that.

Let's take Varjak Paw as an example (brilliant book by the way), in it Varjak has dreams that connect to his real life, and the author writes it in third person (even if the rest of the book was in first). At the beginning the author wrote, Varjak Dreamed... in italics.

Hope this helps!!

I'm not really good at it and kinda don't prefer such sequence where it gets intense and in the end "oh it's just a dream". I would just describe it that the character starts seeing it in his mind or sleep. I think it's too more challenging because you have to make the sequence isn't less interesting than the real plot. Just an opinion.