Pacific Outdoor Equipment Eco Thermo 6
By far the best nights sleep I've EVER had while backpacking.
Price Paid: $80 (E-bay)
By far the best nights sleep I've EVER had while backpacking. The 2.5 inch thick cells allow you to customize the firmness.
I always resorted to sleeping only on my back with my old Thermarest pad, but now I can sleep on my side or however I end up without waking up in the cold of night with a sore shoulder digging into the ground. You don't feel the ground with this baby.
I highly recommend this product. It's construction is very tough and durable. The insulation provided by the bamboo keeps you toasty as well.
Can't say enough about this pad. If you're in question, just buy this one and you'll be a happy camper.