Although this cot has a relatively thin mattress pad, it is quite comfortable.You do not feel springs or anything else through the mattress. As a tall person, my only negative is that it does set close to the ground. (Cot's legs are fairly short) It is a very nice spare bed.
I purchased this cot for a 2 night camping trip (moms' weekend) at my daughter's sleep away camp. It was great -- it is not light to carry but I slept much better than I thought I would if I were on an air mattress. The height is very good - you are off the ground so it is not damp and it is easy to use the cot as a seat during the day. The mattress is very sufficient even though it looks thin. A great idea for camping if you don't think you want to sleep on an air mattress on the ground.
We bought this cot while we had a 20 year old guest stay with us for the summer. She and my daughter took turns sleeping on the cot and they both loved it. The springs were very supportive. The mattress is light and about 3 inches thick and was much more comfortable than expected. We plan to use it for camping as well in out big tent. I highly recommend this cot.