I've donated around 2 euros to huge projects like Wikipedia when they have a donation campaign, or 20 euros to projects like draw.io when I notice on github that they haven't met their monthly goal yet.
The amount and frequency completely depends on my financial situation at the time and I only donate when I am using a piece of software/project (so when I remember, basically) on my free time and decide to check updates/state of the project.
So I'm not a frequent donor to any specific projects and several months may pass without donating any money, but when I have a bit more disposable income and when I'm doing free-time computer related hobbies I take a sum (lets say 50e) and distribute that money depending on project size. Smaller projects get more (less likely to have a lot of donors) big projects less (hopefully they have a lot of people donating small amounts that add up).
Does this occur even after a few nights of proper sleep?
If you generally sleep enough and don't have other sleeping problems you could try to change the ringtone. Or if you are like me and turn off the alarm half a sleep and don't remember it, put your alarms further away from your bed.
IIRC lemmy.ml is the showcase server for lemmy software as a whole, so the organizations and individual donors who fund lemmy development also fund lemmy.ml
Very true!