I ditto that you're drinking too much coffee--the caffeine is likely the culprit keeping you awake, but menopause is probably also an equal culprit. Caffeine affects everyone differently. I must stop drinking anything with caffeine in it by at least 5pm if I plan on getting to sleep at all that night. Sometimes I have a bit too much tea, or I drink it later in the day than normal, and I ALWAYS have trouble getting to sleep and staying asleep that night.
If you feel you need the caffeine, try switching some of your drinking over to black or green tea. You'll still get some caffeine--though not as much--plus tea has a lot of really good things in it that are healthy for your body.
Also, as we age, our thyroid and adrenal glands have been taxed by living and the food we eat, the air we breath, the water we drink. Lots of caffeine is not good for the adrenal glands; if they get messed up, then you'll have a lot of trouble sleeping, falling asleep, staying asleep.
It would be in your best interest to begin curbing back how much caffeine you take in on a daily basis. I drink one glass of green or black tea a day--but, I add a lot of water/ice to my iced tea (that's how I usually drink it. I can drink a lot more "tea" if it's watered down). If I drink just a cup of hot tea, then it's one cup/day--the rest of the day, I drink herbal or rooibus tea.
AND I drink a lot of water. I try to drink 10 8-oz glasses of water/day. Most people are way too dehydrated.