Stop piling extra clothes to create a "pillow" in your sleeping bag. I used to do it too. It's not worth it. Spend the $30. You'll thank me later.
You've probably spent years using jackets and extra clothes to create a "pillow" while camping. After all, pillows are an unnecessary luxury. I couldn't have been more wrong. Splurge on this $30 inflatable pillow and you'll thank me later. It weighs practically nothing and doesn't take up much room -- but your sleep quality will be massively improved. Really. Do it.