Less is more.
First off, the morning after means that she or you spent the night sleeping in the same bed, correct?
After you have sex, get dressed, give her a long kiss and say that you have to get up early for work etc in a few hours.
Leave.
Simple.
The sleeping over is causing the awkwardness.
Do you think James Bond would stay in bed 'snuggling' with a girl he just met a few hours ago?
No.
First off, the morning after means that she or you spent the night sleeping in the same bed, correct?
After you have sex, get dressed, give her a long kiss and say that you have to get up early for work etc in a few hours.
Leave.
Simple.
The sleeping over is causing the awkwardness.
Do you think James Bond would stay in bed 'snuggling' with a girl he just met a few hours ago?
No.