For hypnosis, it is generally better to be relaxed but still somewhat awake rather than overly tired or fully alert.
Relaxed but awake: Being calm and relaxed helps you focus and become more open to suggestions, which is ideal for hypnosis.
Too tired: If you are very tired or sleepy, you might fall asleep instead of entering a hypnotic state. This reduces the effectiveness of hypnosis because you need to be conscious enough to follow suggestions. Your hypnotherapist and can transition you between sleep and hypnosis, but it takes time away from the work at hand.
Fully alert: Being too alert or anxious can make it hard to relax and enter the hypnotic state.
In summary, aim for a state where you feel calm, relaxed, and slightly drowsy but not on the verge of falling asleep. This balance helps achieve the best results during hypnosis.