I've been backpacking for many years and size and weight is important. With that said, proper lighting is important too! This LED USB-rechargeable light is great for hanging inside of a tent, at a campsite, etc. and it's USB-rechargeable. Top-off the charge via a computer or a solar battery bank with USB port! It's great!
The Chillax pillow is great for backpacking. It compresses to an insignificant size and weight for transport and quickly inflates for a comfortable pillow while sleeping. I wrap it in a t-shirt while I sleep to make it feel more like a normal pillow. Available on Amazon.com - Chillax UltraLight Camping Pillow - Compressible, Compact,