You can discuss with him about the option of a short course of hormone therapy or some Non-benzodiazepine
prescription drugs, including Ambien and
Lunesta or some antidepressants such as mirtazapine, which have a sedative effect, and are prescribed off label to treat insomnia.
However, I must mention that these are just the options that have been mentioned, and all medications must be taken under proper medical supervision.
All these would surely help restore your sleep cycle.
Take care.