Read [John 14:2-3]. Then, check out [Rev. 7:4]...it tells us that there will be a "great multitude in heaven that no one could number" all standing before the throne. Here, again, the imagery is of multitudes together, not living seperately in different mansions.
Many people believe we will have our own mansion on streets of gold. Further research translations state a Greek word for mansion is dormatory [dorm for short]. Another thing, you can eat if you want to although its not necessary. Back to the dorm situation...I hope no one can snore in heaven, if we even sleep at all!