>>2186770I have used a Therm-a-Rest Z Lite SOL Sleeping Pad on a few backpacking trips and it's fine if you're a on your back sleeper and even manageable on your side. Since using it I have converted from side to back sleeping. Coming in at 0.41 kg (0.9 lbs) the only downside is the size which you can mitigate by strapping to the outside of your pack.