HellsCanyon
WKR
So I've got 10 nights on my sleep system so far and this last weekend was a real test for it. I'm using a Big Agnes Q-Core SL, Borah Gear M90 side zip bivy, and Seek Outside Draft Dodger Quilt (made by enlightened equipment). I've used this combo in temps ranging from 55* to a confirmed 21.8* and have been very impressed so far.
This last thursday I was wrangling for a local outfitter on a packtrip and took my setup. We were only at 5300' in elevation but the owner said that the meadow for some reason gets really cold. Being late July with no precipitation in the forecast I figured I wouldn't even setup my tarp shelter and just sleep under the stars in my bivy. Thursday night I went to bed wearing my firstlite merino LLano long sleep top and a pair of cotton boxer briefs. I had the quilt fully unzipped in "blanket" mode and went to bed about 9:30 PM. I woke up in the middle of the night a bit chilly so I put on my C4E element beanie, and closed up the footbox on the quilt and went back to bed and slept soundly till morning with the occasional tucking my head under my quilt (that C4E beanie isn't very warm).
Woke up the next morning and checked my new Brunton ADC pro that I'd calibrated a few days prior and was really surprised to see the temp had dropped down to 21.8*!

The next night I setup my Little Bugout shelter and wore a pair of wool socks, a neck gaitor, C4E hat, merino top and merino boxers and while it dipped again into the 20's I slept like a rock without waking up once. I didn't even pack the straps to keep my bivy tight into my sleeping pad and have found that the bivy does a good enough job that I doubt I'll ever use them. Had zero issues with drafts or the quilt pulling up on one side or the other and I toss n turn quite a bit in my sleep.
Morning frost

Shelter setup for 2nd/3rd nights. My stick I used was about 5" too tall which really dropped down the internal space. Though the bivy itselft laid out is nearly 7' long so there's more room there than it looks.

Overall I'm very very happy with the setup. Temp versatility is amazing, pad is rediculously comfortable, and with a warmer hat I could see me being comfortable into the high teens fairly easily, especially if I were to throw on my puffy jacket. I understand that quilts aren't for everyone, but this setup is working like a champ for me so far. I also leave my quilt/pad inside the bivy and just roll it up from the bottom to fit into a Kifaru Med 5 string stuff sack and it fits with ease. If my shelter didn't have it's own integrated pocket I could fit it in there as well. I also want to say that I'm not babying these pieces at all. They've been stepped on and crawled all over by an 85 lb dog, hug up on tree branches and I've used the quilt in early morning glassing sessions where I'm sitting on it on the ground and it shows no worse for the wear. I'm a fairly warm sleeper too which I think should be mentioned.
Mike
This last thursday I was wrangling for a local outfitter on a packtrip and took my setup. We were only at 5300' in elevation but the owner said that the meadow for some reason gets really cold. Being late July with no precipitation in the forecast I figured I wouldn't even setup my tarp shelter and just sleep under the stars in my bivy. Thursday night I went to bed wearing my firstlite merino LLano long sleep top and a pair of cotton boxer briefs. I had the quilt fully unzipped in "blanket" mode and went to bed about 9:30 PM. I woke up in the middle of the night a bit chilly so I put on my C4E element beanie, and closed up the footbox on the quilt and went back to bed and slept soundly till morning with the occasional tucking my head under my quilt (that C4E beanie isn't very warm).
Woke up the next morning and checked my new Brunton ADC pro that I'd calibrated a few days prior and was really surprised to see the temp had dropped down to 21.8*!

The next night I setup my Little Bugout shelter and wore a pair of wool socks, a neck gaitor, C4E hat, merino top and merino boxers and while it dipped again into the 20's I slept like a rock without waking up once. I didn't even pack the straps to keep my bivy tight into my sleeping pad and have found that the bivy does a good enough job that I doubt I'll ever use them. Had zero issues with drafts or the quilt pulling up on one side or the other and I toss n turn quite a bit in my sleep.
Morning frost

Shelter setup for 2nd/3rd nights. My stick I used was about 5" too tall which really dropped down the internal space. Though the bivy itselft laid out is nearly 7' long so there's more room there than it looks.

Overall I'm very very happy with the setup. Temp versatility is amazing, pad is rediculously comfortable, and with a warmer hat I could see me being comfortable into the high teens fairly easily, especially if I were to throw on my puffy jacket. I understand that quilts aren't for everyone, but this setup is working like a champ for me so far. I also leave my quilt/pad inside the bivy and just roll it up from the bottom to fit into a Kifaru Med 5 string stuff sack and it fits with ease. If my shelter didn't have it's own integrated pocket I could fit it in there as well. I also want to say that I'm not babying these pieces at all. They've been stepped on and crawled all over by an 85 lb dog, hug up on tree branches and I've used the quilt in early morning glassing sessions where I'm sitting on it on the ground and it shows no worse for the wear. I'm a fairly warm sleeper too which I think should be mentioned.
Mike