There are those who argue that sleeping separately is a sign of a troubled marriage. But, if a marriage is strong and consists of daily embracing, intimacy, kissing and words of love, sleeping separately will not endanger the relationship.
I appreciate how separate bedrooms give me options. I can be with my partner because of desire, not necessity. Separation can banish the mundane. It's refreshing to be able to focus more on the quality of time spent together rather than the quantity.