Selfish or Self Care?

Where is the balance between serving and loving my husband, considering him "as better then myself" (Phil 2:3) and caring for my own needs out of a rightstanding self worth? I've heard "you must take care of yourself in order to take care of others." I definitely learned that on the mission field. But last night, for the first time I said no to my husband's suggestion for a fun event that would end as a late night. Before, I would give in every time because I love spending time with him so much. Many women crave for their husbands to suggest a fun idea. But afterwards I always suffered and degraded my own choice. One of my goals for internal rest and joy is to live in such a way that I do not regret my own actions. One of those repeatedly has been not going to bed earlier. So, how do I balance this pulling of desires? Fun leisure with my husband, or adequate sleep leaving me happier, healthier, and even prettier?

Perhaps we can find a way to meet in the middle.

Spirit, lead me even in this.

My prayer is that my husband would support and encourage me to get the sleep I need.
And that I would sleep easily, well, and be energetic for the day!