There were not enough time to get anything at all, not even your phone, keys, or wallet, you have nothing besides your clothes and any disability aids (like glasses, hearing aids, etc.). Anything that can’t sustain one hour of burning will be destroyed. All living beings are safe.
Things to thing about: money, sentimental stuff, journals, books, hard drives / digital data, and all of the time and effort you spend organizing your bedroom.
Modern homes go up like kindling because of all the plastics. After an hour, anything that isn’t in a good fire safe is going to be toast.
Oh, this is not a question seeking info about how fire resistant houses are, its asking about how much would you lose