Some things to consider trying, if you haven't already:
Valarian Essential Oil (massage on feet and down your spine at bedtime)
Vetiver Essential Oil (massage on feet and down your spine at bedtime)
Calms Forte (made by Hyland's; most health food & some drug stores have this)
Rescue Remedy (Bach floral remedy)
Magnesium & Calcium supplements (taken in the evening)
Make sure your sleep clothes and bedding are hypoallergenic and free of allergens (use dust covers, etc.; wash all sheets, etc., in hot water; run pillows in dryer for 20 minutes every 2 weeks to kill dust mites)
White noise in bedroom (helps screen out other unwanted sounds)
Acupuncture - to rebalance sympathetic & parasympathetic nervous systems (an imbalance can lead to insomnia)
Soaking in a warm bath (with epsom salts or baking soda in it) before bed
Reading an economics (or other dry subject) textbook ~ sounds funny, but who knows - it might work
If I think of anything else, I'll post it here too. Good luck,
Chronic Lyme Disease, Gluten & Sulfite Sensitivity, Many Food/Inhalant/Medication Allergies & Intolerances, Asthma, Gut issues (dysmotility, non-specific inflammation), UCTD ("Secondary Lupus-Like Syndrome"), Osteoporosis, Anemia, Lymphopenia, intermittant Pancytopenia, chronic malabsorption/malnutrition, etc.; G-J Tube; Currently TPN-dependent.
Meds: Zofran, Pulmicort, Vitamin B12 Shots, Heparin (to flush PICC line).