The humidity level in the house can also be an issue. If your furnace does not have a humidifier (or even if it does) adding a humidifier to the bedroom might help. It also generates white noise which may make it easier to sleep.
Maria

CG to husband - SCC Tonsil T1N2M0 HPV+ Never Smoker
First symptoms 7/2010, DX 12/2010
TX 40 IRMT (1.8 gy) + 10 Cetuximab
PET Scans 6/2011 + 3/2012 clear, 5 year physical exam clear; chest CT's clear of cancer. On thyroid pills. Life is good.