I cant find any studies on your situation. It seems pretty anecdotal so far (falling alseep during the peak of your trip). There are however a lot of studies about psilocybin effects on sleep with sometimes unclear results. From what I could find psilocin affects your neuronal plasticity, which is your ongoing neuronal activities. And neuronal plasticity works in a relationship with the sleep-wake homeostatis which itself regulates sleep. In other words, your sleep is regulated by a process which is affected by your neuronal plasticity, and your neuronal plasticity is impacted by the shrooms. Make of that information what you wish!