I have no trouble falling asleep. It is a rare night that I'm not asleep five minutes after hitting the pillow. What I do suffer from is night waking. Come 3 or 4 in the morning, I often find myself wide awake. It's too early to get out of bed and start my day, and while I eventually fall back to sleep, I wake up exhausted.
Because we go through many sleep cycles every night, waking in the wee hours of the morning is fairly common, but not being able to go back to sleep multiple nights in a row spells trouble. To prevent this maddening pattern, I've gotten proactive and cleaned up my sleep habits. Here are common sleep disruptors and what you can do to sleep through the night.
Two common issues that I don't beleive were affecting me: fluctuating hormones (as women age, they tend to become lighter sleepers) and the need to pee. But you should limit the intake of any bevvies a couple hours before bed.