Sleep can be finicky even for people not in withdrawal. Have you had any changes in your life recently? Change in jobs, relationships, or supplement usage? I am currently tapering off an AD so I am having sleep issues as well. Had 1 hour over almost 3 days, but it has improved to 4 hours as of last night.
If things don't improve you could either ride things out until it does or try new nightly routines.
-warm shower before bed
-no lights on
-avoid sugar and eating too close to bed time.
It may sound odd, but listening to things on YouTube that interest me (history) help me some. Try some new changes, even temperature, and you may find some relief. I hope things improve for you.