What's the difference between a light and a hard?

It was about 3 am with my last wife and we had just finished a wonderful missionary mayhem. I slid down to DATY some more and she tells me I fell asleep nose deep.  She also said she finished herself on my nose and rolled over to sleep. No harm , no foul.
Those were the early days. In later days I fell asleep because she wasn't interested.  
It was great while it lasted.

... she wasn't my official girlfriend but she'd often visit me when I'd play gigs near where she lived. She'd usually ensure that if I fucked her once, I'd have to fuck her two or three times to sate her. One nite I wasn't feeling 100% and I fell asleep on top of her during our second round of sex. She gave me a lot of shit about it the next morning. This amazing woman was also one who, even tho I had already emptied my load into her mouth following oral, would keep on sucking me 20 to 30 minutes afterward, coaxing repeated after shocks from my now limp dick until seismic activity had ceased. There were several times when I woke up in the morning with my dick still warmly suckled in her mouth. Never met a woman like her before or since. Here's to you, Debbie!!