Sleeping bag/Pad Combination

[Cotton Terry]

I have a Big Agnes Zirkel UL20 bag with a Thermarest Z-Lite sleeping pad and will have sleep socks, silk long johns and a down sweater, if needed. I'll be starting my NOBO in Mid-March. Will this be warm enough?

[Sandy of PA]

The Z-Lite does not have a high enough R value for me, for March. I am a woman that requires R 5 for that type of weather. I would add a Neo-Air to reach comfort. YMMV

[Franco]

The SOL version is rated R2.6 by the maker.
Similar to the original Neo Air .
That works for me down to about 40f or around 30f with an R1 CCF mat under it.
Extra clothing will help but not as much as a warmer pad.

[Cotton Terry]

Thanks for the input.