solutions:
1. warm milk - said to remind us of warm mother's milk we were fed
when small and babyish.
2. drink something heavy, like milo or horlicks instead.
3. DON'T SMOKE. nicotine increases heart rate, makes it harder to
sleep.
4. a shot or two of good brandy.
5. a glass of wine
6. a good workout. usually you can't sleep when your mind or body
are not tired. no scientific explanation to back up for proof. but
if body is not tired but mind is tired, you can't sleep. even if
body is tired but the mind is active, also can't sleep.
anymore addons?