I love my Owyhee 1s and so far it is holding up down into the 40's with a Jarbridge 3s, (i'm a hot sleeper). But I would like to suggest a optional upgrade.
In the future I would pay extra to have one side of the Owyhee made with the M90 material you used on the cub pillows, that stuff is so much more comfortable to the touch when compared to ripstop.
I am aware it cost a bit more than ripstop, but I would guess it would be affordable if used on one side.
Just a suggestion. I of course volunteer for any field testing!