Nocturnal erections were not much understood until the past decade, and still a lot is not known about them. Years ago when I told my doctor that I was not having them anymore, he asked, “Why would you want them?” I gave him the very short answer, replying that they are very healthy events for the penis. He had no comment. I suspect he wasn’t having them either or, like Para-Goomba, he found them a nuisance.
Most healthy men without ED do have nocturnal erections (4 or 5 a night) whether they are aware of them or not. Not all men who have them wake up to them at the end of their sleep period, most because they wake more slowly out of the REM phase of sleep, moving to the next level of conscousness, after which the erection has already subsided.
It is common to go through phases of these. Work or emotional stress will dampen them, for example. If you did just one stamp test, Chongo, with no result, or a couple of stamp tests during one week when you were particularly on the go, that doesn’t mean a whole lot.
I am not saying that if you don’t have them (like really don’t have them) that you are a candidate for ED. Only that no nocturnal erections is usually a symptom of some form of ED, either psychogenic or physiogenic. My bet is that you guys who for sure don’t have nocturnal erectins are now supplanting their function by the frequent erections you have when you do your PE routines.
As we age, and even the thirties and forties are more aged than twenty-one, ;-), nocturnal erections tend to decline in frequency and rigidity. But there are some chemical tools to bump them back up again when they flag, if one wants to do that.