I was talking to the neighbour, cause she requested I rouse her. I hadn't put much effort into the endeavor, cause I knew I could just lift her out of bed outright and she'd have to wake up. but I chose to do the bare minimum and let her blame herself if she was late for whatever activity she had planned, so anyway, that's not really important. She sleeps like a rock, she has like five alarm clocks and she routinely sleeps through all of them, I can venture into her domicile and she will never awaken. So I asked her if she had always been this way, and she said yeah, she was always a rock as she slept.

So I thought about my own sleeping, and I have my own patterns too, my whole life I've been more of a napper, sleeping for four hours at a time or so and doing this multiple times throughout the day and night.

what makes people sleep certain ways, has anyone here changed, or have they always followed whatever pattern they currently possess?