This thread is pretty gross.
Op I can't quite work this out, you talks about him pestering you every 15 minutes, you talk about wanting to scream at him to leave you alone, you talk about begrudgingly agreeing.
All of that sounds like coercion to me, yet somehow I don't know if you're joking.
Do you actually want to have sex with him on Sunday mornings? If you do and this is a game of yours, then great, but I'm not sure why you started the thread. If you truly, genuinely don't want sex on Sunday mornings, and feel you have to, then it's not ok.
As for the person whose husband rapes her while she's asleep, I have no words.
I realise every relationship is different. Personally I love it when dh wakes me up for sex, I wish he'd do it more, sleepy sex is great.
If it's just a game of hard to get between two consenting adults then fine, but anyone bring pressured into sex isn't ok at all.