There are acctually benefits to sleeping in separate beds as your spouse for periods of time. Space is an important part in maintaining attraction. I would rather be with someone 2 quality days than be with them 5-7 sub normal days a week. Everyone is built different, but I am an introvert and value alone time. I can be fine with that, but the risk of being with someone and seeing them everyday is that it kills attraction in long term relationships. Attraction grows in space. It would probably help allot of marriages if people introduced an element of space if possible.