Experiencing something like hearing your crush's voice while you were half-asleep is not uncommon and can be attributed to various factors, including your thoughts, emotions, and the state of your brain during sleep. Here are a few possible explanations for what you experienced:
Dreaming: When you are half-asleep or in a semi-conscious state, your mind can easily transition into a dream state. Dreams can be vivid and sometimes incorporate elements from your waking life, such as familiar voices or faces, including your crush.
Hypnagogic State: The state between wakefulness and sleep is called the hypnagogic state. During this phase, your mind can produce various sensory experiences, including auditory hallucinations like hearing voices, which can be mistaken for real sounds.
Subconscious Thoughts: If you have strong feelings for your crush, your subconscious mind may be preoccupied with thoughts and emotions related to them. These thoughts can influence your dreams or half-asleep experiences.
Parapsychological Experiences: Some people believe in paranormal or psychic phenomena, such as telepathy or astral projection. While these claims are not scientifically supported, some individuals report having experiences where they perceive the presence or communication of others through extrasensory means.
Coincidence: It's also possible that what you experienced was simply a coincidence, and your brain happened to process unrelated sounds or stimuli in a way that resembled your crush's voice.
In any case, such experiences are generally not indicative of anything specific. They are a normal part of the human experience and don't necessarily hold deep meanings. If you find the experience pleasant or intriguing, you can choose to cherish it as a unique moment, but there's no need to read too much into it. If you're interested in your crush, consider getting to know them better through normal interactions and conversations. That way, you can build a genuine connection beyond any dream-like experiences.