Enigma 850FP 40F

Flex foot box is adequate. It’s a lot of down and as long as you arent over 5 foot 11 shouldn’t be putting any pressure towards the bottom to make a cold spot. Does make it more versatile in warm temps too Personally felt like my Nemo tensor all season and flex 22 were too warm for Rae lakes in November in freezing night conditions. Felt more comfortable in just base layers flex 22 same pad snow camping in Yosemite in my borah bivvy. I have a 40 degree enigma that I use for 80 percent of my trips but when I need a guarantee of warmth that’s when I go flex 22. But I also think I’m a warm sleeper

I just custom ordered an Enlightened Equipment enigma that's Xwide, measurements says the Xwide is 68in wide. Might be what you're looking for.

I did the PCT with a 10 degree enlightened equipment enigma (quilt with sewn footbox) and it's a way more comfortable sleep than my mummy bag days. It's the #1 bag in that survey for a reason. It's now lasted me 12 years and about 200 nights and is still in amazing shape. I also have their 40 deg quilt. When outside The bag never leaves the tent, other than while in the stuff sack. At home store it in a oversized large storage bag or hang it from a hanger in your closet and occasionally (like every couple months) store it the opposite way. I imagine I'll get another decade out of it.

I bought a used quilt on marketplace. Enlightened Equipment 40 degree.

I agree. After being really cold most of my PCT section hike in 2019, I don't use my EE enigma below freezing. I got a western mountaineering versalite in 2021 and love it for cold weather.