Not even started treatments yet, but have had loads of pain and sleep problems with tumour pressing on nerve and following biopsy.
When in CA at Easter I discovered AdvilPM which has helped enormously with my sleeping and docs here say it's okay! Probably milder than your hubby needs, but believe me, they've worked for me when been in SERIOUS pain!
Brenda

Brenda in UK--Diagnosis 30/5/07--undifferentiated carcinoma in right jawbone and muscles. Stage 4
6/7/07--new diagnosis primary is in lung. Finished 4cycles of palliative carboplatin/gemcitabine
therapy September 07
Now dying to live!