Does sleeping medicine like trazidone kill brain cells?

No. Trazadone does not kill brain cells. It was originally used as an antidepressant and found to have the benefit of treating sleep onset insomnia. If you're concerned about your memory or other neurological issues, speak with your regular physician.
Trazidone. I am not aware of this side effect. Remember, a hundred thousad brain cells everyday and luckily you have a hundred billon all together.