I can count on one hand the number of times in my life I've slept naked.
I'm just not a fan.
There's something about knowing I'm baring all, all night long, that is extremely uncomfortable for me. Every time I've ever slept that way, I haven't slept much. Feeling that exposed makes it hard for me to sleep. I toss and turn. It's as though I am conscious of my nakedness all night; it's very odd.
I can relate with Adam and Eve's feeling of utter vulnerability when they realized they were naked. They felt exposed and the strong need to cover up.
What I can't relate with is their pre-sin comfortability with their own nakedness. They felt no shame, no inhibitions, in their exposed state. They were completely comfortable with baring all.
I recently read this, and it seems to resonate with the idea of baring all to God (heart nudity, if you will):
Tell God all that is in your heart, as one unloads one's heart, its pleasures and its pain, to a dear friend. Tell Him your troubles, that He may comfort you; tell Him your joys, that He may sober them; tell Him Your longings, that He may purify them; talk to Him of your temptations, that He may shield you from them; show Him the wounds of your heart, that He may heal them; lay bare your indifference to God, your depraved tastes for evil, your instability. Tell Him how self-love makes you unjust to others, how vanity tempts you to be insincere, how pride disguises you to yourself and to others.
If you pour out all your weaknesses, needs, and troubles, there will be no lack of what to say. You will never exhaust the subjects. People who have no secrets from each other, never lack subjects of conversation. They do not weigh their words, for there is nothing to be held back. They talk out of the abundance of the heart, without consideration, just what they think. Blessed are they who attain to such familiar, unreserved intercourse with God."