I have sleep apnea what is the safest dosage of trazodone for insomnia?

Depends: Generally the lowest dose to provide the desired effect.

Safest is none: I am concerned when sleep apnea and sleeping meds are used in the same sentence. You don't mention if your apnea is being treated. Do you routinely use a cpap? Why the insomnia? Things to consider include caffeine intake, regular exercise, bedroom darkness, temperature . Consult with the sleep specialist who diagnosed your apnea for advise with the insomnia. They know the severity of your apne.

Trazodone: Long term studies do not support use of trazodone is not supported, cbti is best long term for insomnia sleep study with adequate pressure has to be determined.