Some random thoughts about my first night using the Yeti:
It is MUCH better than a pad
The Yeti completely surrounds you. You can move around, sleep on side, whatever. No problem. When using the pad, I was always messing with the sleeping bag to be sure it covered the edges of the pad. Any fidgeting or a pee break meant trying to readjust. The underquilt is always there and always covering me completely.
It is very warm. I had to slide it off to one side for a bit to cool down, rotating it out of the way along the hammock centerline. You cool quickly, but heat up immediately when slide back into place. This can be done while laying in the hammock.
The sit pad inside the sleeping bag foot works well. My feet were getting cold, then I noticed I wasnít all the way in the bag. Instant warmth when I moved.
No problem with gap between end of Yeti and beginning of sit pad. I donít think there is a gap.
Very comfortable, flat lay. No neck problems.
Getting in/out no problem, though you need to slide the Yeti back into position after entry. It usually drops down about 6 inches when you climb in. Just pull it back up before zipping the bug net. A five second operation.
The bungee cords that hold the Yeti in place are very tight and if you lay on them, it can get uncomfortable. It is a simple matter to move just a tiny amount or pull them up a bit and all is OK.
You get a LOT more insulation. The Yeti naturally lofts underneath the hammock and that maximizes insulation more than if it was laying on top of you. It fluffs downward with e help of gravity giving you maximum loft. I use my sleeping bag, zipper down, and do not sleep on it. This doubles the bag on top of me. I was awash in down.
It got down to 57 degrees and I was hot. I did not use the hat, down jacket, or longies. I stripped to my BVDs and a short sleep shirt and still was warm. I ended up rolling the sleeping bag back about halfway. Make no mistake though, it got cold fast if you were uncovered above and below.
With the underquilt in place, you have the sensation of heat quickly, unlike anything I have experienced when ground dwelling.
If you were ground dwelling, you could use the Yeti + pad and not need a sleeping bag. If I curl up on my side, I am completely covered by the Yeti. The bungees surround the pad and keep the Yeti in place on my 26" wide pad. I bet if you had a down coat, you could cover the lower half of your body. A gram Nazi would love that.