Do you have a mind that is racing even though you are tired and feel you are ready to sleep? Are you a nervous type, hyperactive, thinking or worrying about the next day or next week?
Applying some mind-calming techniques might be useful rather than taking sleeping pills.
Inflatable pillows are OK. As are pillows we have available in Australia that have a lightweight stuffing that allows the unit to pack down quite well. I can't stand putting clothes inside a bag and using that soley as a pillow -- the clothes inevitable pack down to a rock-like feeling, and there are creases and seams to deal with, too. But an inflatable or stuffed pillow as mentioned above on top of a bag of clothes gets my head to a good height.
A pillow slip might be useful, too