quilt rated 50.

Everyone is different, but if the temp does drop to 25*F I think you would be very uncomfortable with a 50* quilt, even with the baselayers and down jacket.

For me, I would bring a 20* bag/quilt at the very least.

I would bring a much warmer setup also.

if the lows were 25 F and you wore a down jacket, I think a 40 F quilt would be fine. 50 F quilt would be pushing it. If "sleep warm" means you need less insulation than the average person, maybe 50 F quilt would be okay. You would have less margin of safety in case it got colder than 25 F

I've pushed my 50d quilt into mid 30's wearing down jacket and pants (Luke's UL stuff). I was also in a tent and on top of a 1/4" ccf + Neo Rest pad.

I slept comfortably, but could tell that I'd become "cool" if it were a few degrees cooler.

I agree with Jerry on this, although what you are sleeping on top of and tent selection can make all the difference.

Some tents will hold the interior temperature up by 5-10 degrees.

In another thread you said you had a 20 degree EE quilt. Bring that. I'll be out there sometime in the next 2 weeks. I'll have my 20 degree bag and will be glad I do.

No way, you are going be cold.

My feet got cold just reading your post

I think this is a very bad plan. I am a warm sleeper. I have a 50F quilt and when I'm in long undies and a fleece I'm chilled when the temp drops to low 40s. That's with a NeoAir XLite and in my tent. In high 30s I've been fine with long undies, pants, fleece, jacket, and hat on in that setup but taking that down to 25 would be miserable and irresponsible. If you have a 20F quilt bring that, that's why you have it.

Thanks to all of you. I will bring my 20 degree quilt. I feel bad even thinking about that, as you guys mentioned, this might be even irresponsible.