When we sleep can be predictive. What we eat and what we do predicts or determines when we sleep, possibly. Normal people can go to sleep when they feel tired. For me, I have went to bed when I felt tired. At other times, I did not go to bed even when I was very tired. There were times when I was not tired and I was still sleeping. There are times I try to sleep. There are times I choose to sleep and not sleep. People are predictable. But that doesn't mean they don't have choice. It just means they fail to choose or that their choices are predictable.
I do not believe in absolute determinism. I believe that your choices are your choices. If I kill you, then you don't have the choice to sleep or not to sleep. In other words, sleeping would no longer be one of your choices if you are dead. That is a clear example of what I believe. You can only do what you can do. And there are some choices others make. There are things that happens that may take from the possible and potential choices we may want to or could have made later on in life but can't if those choices are no longer there. If we had a time machine, we could see what will happen in the future, but knowing the future may not destroy the future from happening through at least some bit of freewill, as in choices, decisions, via people, the universe, and everything.
Some things are beyond our control, perhaps. What others does may affect us, too. So, if I give you sleeping pills, then you will probably go to sleep soon. I would be able to determine when you sleep. Fire can kill you. In other words, the fire may determine your death, perhaps, or maybe to an extent it may seem. So, in life, it may seem that everything or that some things are determined by not me, not you, not by individuals, but by maybe other people, maybe God, maybe Buddha, maybe Allah, maybe Zeus, maybe Ra, maybe the universe, maybe Mother Earth, and everything, or whatever. But I would say that we still have some choices.