This doesn't work for me, but it's a good thing to do since you're already lying awake anyways. Think about all the things that happened in the day. Try to relate those things to events in the past. Think about stuff that you'd really like to happen or not happen in the future. Make up all sorts of desirable scenarios. Make up undesirable scenarios and ways to avoid them. Think about your videogame progress. Imagine what you haven't attained in the game yet could possibly look like. Think of a catchy part of a song and repeat it over and over again, and then try to get that song out of your mind, or switch to another favourite song. Reflect on your life.

Basically just clutter your mind with thoughts. Eventually you'll get tired of thinking and your desire to think may cease as you fall asleep. If not, then you've thought about stuff and you don't have to worry about it throughout the next day, or you've thought of ways to prevent it, etc.

Before you couldn't sleep with a shirt on? I find that a bit odd since I think most of us grew up going to sleep with quite a bit of clothes on.

On an almostly completely off-topic topic. Recently since it was winter I tried what my brother's room mate does, which is sleeping with a sweatshirt on, and I actually found it quite comfortable and warm(I always had trouble with loosing my blankets at night and so I would be freezing untill I convinced myself to get up and pick up my blankets).

Try and do a certain routine every night. Walk around and think about something you did for about five minutes, write something in a journal for five minutes, brush your teeth, then lie in bed and think about something else until you fall asleep.

I tried drinking tea last night and the warm feeling from it helped me to get drowsy and eventually fall asleep.

a bottle of liquor will put you to sleep easily.

Turn on the TV and face the other way, that's my ultimate method :)
(it pisses my mom off though, since she always has to turn it while I'm asleep)

Reading.

Seriously. Whenever I read a book no matter how entertaining it is before I hit the sack, it will put me to sleep in a matter of minutes. Having a fan blow on you works well too. Not because of the air, but I think because of the gentle noise it makes.

listening to relaxing music has worked for me for quite a while (notwithstading extremelly stressful situations). I usually fall asleep in 10 minutes or less.

But the trick really is to create a habit. Read, listen to music, drink warm milk, whatever...

really? I thought tea was meant to wake people up... must be a weak one :p

Read something incredibly boring, like an accounting or psychology book. Or consistently keep yourself up late at night studying for a week straight, say 4-5 hours of sleep a day. You'll have no problem going to sleep the following week.

I get to sleep quicker by not sleeping in a bed that sucks. On a regular boxspring matress it would take me 1-2 hours to fall asleep.

Then I got one of those new matresses that fit around your body so no part of you is uncomfotable and nothing has any strain put on it. I fell asleep like a baby real quick.

I also slept longer.. because I wasn't waking up every few hours to turn around and get comfortable again.

TURKEY.

I'm not kidding, turkey has the enzymes that make you drowsy, so eat up! ;)

Although few people would think of it, a corn muffin washed down with a nice cold glass of chocolate milk before bed really does the trick for me. The problem with turkey is the tendency to eat too much turkey and have a stomachache that keeps one up. Plus, turkey lacks the convienence factor and portability of a muffin.

Actually, no, it doesn't. (Considering that people consume Turkey on big holidays, the drowsiness is most likely due to having a full stomach, I would imagine.)

I particularly don't enjoy reading so I read something that I have no interests in to cause me to go to sleep fast. Calculus also does the trick for me.

I used to not sleep well. I didn't fall asleep easy, either. I finally tried making myself get in bed and try falling asleep. It was really hard and annoying to begin but after a while I was able to go to sleep without much effort.

This is truth. If you need proof go eat too much for dinner and you will quickly find out you're tired as fuck. You're sleepy because your body is taxed trying to process all that food. ._.

To make myself go to sleep I usually grab a book(preferrably a boring book)and read for a while, then I'm off to sleep. You should try that.