I developed tolerance to ambien and all the drugs in that class as well. Actually developed tolerance eventually to all modern sleep meds a few years ago. Trazadone worked well for a few years then started needing higher and higher doses that left me feeling drugged in the morning. Now I take belsomra, a brand new sleep meds that it not supposed to be associated with tolerance issues. It is very expensive though. $400 + retail per month. I’m on a Medicare part D plan and pay $130 every 3+ months. Compared to a few bucks for trazadone.

If it were me I’d stay on the lower dose trazadone due to cost, assured that if the time ever comes, there are alternatives . Perhaps by the time u need it, the price will have come down.