This blog post article was stolen with permission from http://nstanosheck.blogspot.com/2008/04/sleeping-positions-of-couples.html
This is a variation of the Spoon - the most common position adopted by couples in the first few years of marriage. Comforting and cocoon-like, it's a semi-fetal position with hips against buttocks to provide maximum physical closeness, though it's not necessarily an erotic position. The man is usually the embracer. Few years later, couples feel secure enough to allow space - and comfort - into their bed. Often, they sleep tethered, like Spoons but with distance between them. The emotional current is sustained by a touching hand, knee or foot.
The Honeymoon HugThis face-to-face, body-ensconced-by-body position is often termed the "Rolls Royce of intimacy". Less common than the Spoon (and uncomfortable to maintain throughout the night), the Honeymoon Hug is a very natural position that many couples slip into just after lovemaking. It's quite common at "love's blazing beginning", when you're so deeply enamored that you wish you could "fuse". Some couples return to it over the years, during periods of special joy. Among those who stick to it, psychologists say the partner who tends to initiate it could be overly dependent on the other. If both do, they could be "overly enmeshed".
The Royal PositionWhen one partner (typically the man) lies face up in what's known as The Royal Position, it indicates a strong ego and a sense of entitlement. The woman's head on his shoulder suggests that she is the more dependent and compliant one - almost as though she is "looking at the world from his perspective". This position reflects a high level of trust and strong commitment. Women who are uncomfortable but want the coziness of proximity can try the reverse: Lie face down, with your body overlapping your partner's. Psychologically, this represents an attempt to focus total attention on your partner, even in sleep.
Some couples aren't comfortable establishing physical contact at the onset. They would rather go about it as if it were almost by chance - their toes or feet "accidentally" touch, or one partner's leg is casually thrown over the others. Although such casual contact could imply that you or your partner are in two minds about expressing affection, or are intentionally withholding it - maybe after a fight - it may also indicate healthy camaraderie. Hooked legs could also suggest familiarity and comfort - almost like a "secret code". After all, you need to have a pretty strong foundation to assume such "physical proprietorship" even after a quarrel or argument.