> I believe this is because of how Mac is designed
Yes, that they actually got sleep working properly.
I still remember reaching into my backpack to retrieve my Macbook in sleep mode only to find it hot to the touch, having woken up for some goddamn stupid reason. We had "proper" sleep decades ago: we called it "hibernate". Modern "smart sleep" is a technological regression, and Apple is as big an offender as any.
What's the point of sleeping your computer? If you are not using it then it's better to just turn it off