For me, sometimes night IS morning, if you go by what time it is.
If you mean sex before sleeping vs sex on waking, it depends on whom I am sleeping with. Some partners enjoy waking to discover that they are being ridden, blown, or pleasured with a tongue or toy. (I rather enjoy the latter more than waking up while being fucked, but that can be fun too.)
Some don't want to do anything but drink coffee until they are fully awake.(yes, YOU Rachel!) Not all my partners are morning people.
I have also awakened in the arms of a soft warm sexy person and we immediately set out to pleasure one another. Not unusual to end up spending the better part of a day in bed on those mornings.

WW

__________________
"I wondered, am I a lesbian, am I straight, or bisexual? Then I realized that I am just a slut.
So where's MY parade?"

---Margaret Cho