i doubt you have any readily available sleep aids like melatonin or valerian root...but those would be viable options if you did have them.
failing that, you could give binaural beats a try...
http://gnaural.sourceforge.net/GnauralJavaApplet/
requires headphones. you can either run the default setting, or manually control it.
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There is no shame in not knowing; the shame lies in not finding out