When I can’t sleep, I turn around and sleep “upside down” - moving my pillows to where my feet were beforehand, and my feet to where my head was beforehand - and I stick with that for a week or so. It gives me a week or so without insomnia and then wears off, so I have to turn myself back around for the next 7-12 day period.
Admittedly this could just be a me thing, but let’s put our faith in this method and let the power of placebo effect take hold. Boom, minor bouts of sleeplessness are cured.
What are your own examples of this?
Tea (black and green) is only bitter if you don’t know how to make it. Get good quality tea leaves (not the ones in the bags, they are usually the worst quality) and look up what temperature the water needs to be for your kind of tea. Usually around 70-80°C for green tea and 80-90°C for black. Especially green tea is only bitter if you prepare it with boiling water.