There was a rather interesting article today on yahoo describing the meanings behind different kinds of sleeping positions with your partner. So whether you sleep in spoons, face to face, back to back or even in separate beds, there is a meaning behind it according to this article: http://uk.lifestyle.yahoo.com/what-your-sleeping-position-says-about-your-relationship-.html
In a similar article, there is a discussion of creating the ideal circumstances for sleep in the bedroom. It explains that the bedroom should only be a place for sleeping and sex so that we dont develop an association in the bedroom for other things, like working, eating or even watching TV. Insomnia is something that is increasing in todays modern environment, and one of the places we should be turning into a sanctuary for sleep is our bedroom.