I don't know if it'll help your situation, but this is a reason I started taking morning classes at my gym. (Not super early morning, I'm not awake/coordinated for that.) I found that I don't sleep well if I don't get some kind of exercise during the day. Also, classes require me to force my butt out of bed because I have to keep their schedule. Or go when Li'l Z is at school. But I find I have more energy if I do my workout before 12pm.So my sleep habits have been a pile of shit for the last few weeks, not at all helped by the fact that I'm home alone during the day and there is nothing stopping me from going back to sleep for hours after my kids go to school even though there are other things I should be doing.
Yesterday I woke up at 7:30am, and didn't feel the urge to take a nap at all. Success! I started feeling sleepy around 8, so I figured that if I laid in bed instead of keeping myself up I'd have a better chance of falling asleep at a reasonable hour and hopefully make strides towards fixing my sleep pattern.
Nope, didn't fall asleep until 2:30am. FML