How could we ask Apple to lift the alarm clock 15 minute limitation?

I am part of those people who mostly will not wake up in 15 minutes. It means I have to rely on third party alternatives rather than on my $1000+ hardware for these basic feature. I thought this was a bug but now realized it is actually a feature. Could we have an option to increase this 15 minute timeout? I have seen someone here say that alarms work this way, but in France, at least, all digital alarm clocks I had in my life rang for at least 59 minutes, all of them. The one I have currently, a Philips sun rising simulator goes as far as 90 minutes. Do you know where we could post this easy to implement requirement? Thanks.