First off I didn't want to upset some of you women but here's a fact for you. Did you know most guys with normal sexual health wake up 3-5 times a night with a hardon. It's perfectly normal and actually would be something to worry about if they don't.
In my case it wakes me up, this could be due to the fact that we go through REM sleep cycles and we usually wake towards the end of them. The longer the REM the more likely to wake that's why you usually remember your last dream.
Anyway if like me your fella wakes up and has a hard on it could very well be that he's doing what's programmed naturally into him to get back to sleep! Not waking you up, wanting a decent sleep himself and doing something about it.
Now I'm not saying this is the case in every one of the statements above but try having a little compassion and not just thinking the guys literally a tosser or worse addicted to porn. He might actually be functioning normally and be getting annoyed with the fact he can't sleep! It could be the case in years to come where and again this is well documented that this stops and he struggles getting hard due to age. This will be crushing for him and he'll be mortified.
So ladies don't let midnight, during the night or morning wood insult you. I'm not saying it's the case in every case but maybe not take it so much as an insult. Talk to you guys and show some understanding. You may get pissed that he doesn't wake you up, he might not want to to not disturb your sleep, he may even just be so knackered that like me sometimes it's just the only way to get back to sleep and sex would be an absolute mission.
I love my partner, I love sex with her and would miss it dearly but sometimes or in fact quite often I have to "knock one out" just to get back to sleep.
Give your guys a rest. Literally.
It's not all bad and don't naturally think the worst.