I sleep hot, but I love my EE Revelation 20*. It is a wide/regular, we had nighttime lows in the teens a couple nights and high 30s one night during 2nd rifle for extreme ends. I was fine every night with nothing on my head, and the warmer night I didn't even wear socks.
I think the straps work great if you use them correctly. I ordered an extra loop strap to replace the straight one up top, so I have two straps that go around the sleeping pad that connect to the quilt. I just cinched those up underneath me every time I got in, never felt a draft. I used a Nemo Tensor sleeping pad.
