I'm getting ready for my TX tour in a few weeks. I have a Kelty Crestone Tent and a small, lightweight sleeping bag already. Both are small and won't take up much space in my bag. However, I don't have a sleeping pad yet. The lightweight ones I'm finding are almost $100 and I hadn't budgeted that much for a sleeping pad. Any recommendations on something that is fairly small and light but won't break the bank? Or....do I just make the investment in a good night's sleep and bite the bullet on an expensive one? Recommendations?