I have the Nemo Insulated Tensor pad and I really like it a lot. Its 25x32x3, so pretty comfy for side sleepers. It was about $170 @REI, but if you can hold out for a 20% off sale, it might get close to your budget.
I use quilts, and have a 20F top quilt from Loco Libre gear that is great! I...
https://www.packitgourmet.com/CookinCozy.html
This one is pretty reasonable and lightweight. I did make one from a sunshade originally but it came apart after a while.
Also, The meals from Pack It Gourmet are way better than Mtn House and the other big firms, in my opinion.
Plus they are local...
I use a Nemo Tensor Insulated pad. It was one of the few that was 72 in long and 25 in wide. It’s also 3 in thick. Never gone backcountry hunting, but I’ve used it on plenty of backpacking trips.
Pretty much this. Most backpackers use their Buff, as well.
I want to option of using a wood fire to boil water, so I would avoid adding any silicone to the handles.
I’m a hammock guy and I’ve got the LLGP. It’s a 20 deg, with an oz or 2 overstuff. The quality is great and I’ve used it on about dozen short backpacking trips. My only regret is not getting the sewn foot box. Other than that, it’s awesome!