The temperature will be 7 degrees fahrenheit at the lowest. Bringing a sleeping bag liner. Wearing fleece long johns, gloves, thick socks, and a balaclava. I'll also be filling my nalgene with boiling water and sleeping with that. Using a klymit static v sleeping pad on top of a thermarest foam pad. Could also throw in some hand warmers if that's still not enough.

Never had any problems sleeping, in fact i'm a really hot sleeper, but I don't know if this is unreasonable.