Thanks! You are all correct-I don’t remember fare class being displayed like that on DL.com
What throws/threw me off was seatguru-- it denotes in sum, that a 763 with 4 rows is standard domestic F; 763's with 5 and 6 rows are "business elite"
both the red-eyes mentioned showed 5 and 6 rows when I clicked "view seats"
If I didn’t know better, I would be under the assumption that I am sleeping/drinking in a Business Elite seat that night

http://www.seatguru.com/airlines/Del...-300_D_New.php