Quilt combination questions! HELP!

I'm not sure exactly what you are asking.

Is it: a 20 degree/40 degree top quilt combo vs. 30 degree/50 degree combo?

Do you tend to sleep warm or cool? Has the Burrow been too warm or just right?

Sorry, I am all over the place.

I am considering a few options:

1. Keeping my 20F top quilt and adding an underquilt. I could add a 20, 30, or 40 underquilt. I have never used an underquilt personally.

2. Selling my 20F quilt and buying a different top quilt- 20 or 30 degree synthetic.

My question is what combination of bottom and top quilt temps would cover me down to the 30s? I would wear clothing to sleep down in the lower temps. If I had say a 20F top and 30F under, I could use the underquilt as a topquilt when it gets warmer.

My 20F has been great into the 20s as well as in the 50s. I am not quite sure what is too hot for me to use this quilt.

"If I had say a 20F top and 30F under, I could use the underquilt as a topquilt when it gets warmer."

For that you'd need to get a full-length quilt, as opposed to the various shorter underquilt options.

Anyone (Tim, Peter) know how closely matched Hammock Gear and EE's ratings are, i.e. is a 20 degree Burrow pretty on par w/a 20 degree Prodigy? Cause that might be your most useful bit of info.

The prevailing wisdom I've heard is go more conservative on the underside insulation.

(Personally I'm trying CCF in a double-layer hammock this summer, as I had trouble keeping a Warbonnet under quilt in place)

By conservative you mean more warmth on the bottom?
Might a 30 top and 20 under be better?

I question the synthetic vs down choice – if you are not hiking day after day in humid conditions where it would be impossible to dry the quilts, down would be fine. it's hard to truly wet out down. the advantage of synthetic is not that it's warmer when wet, but that it dries faster. Treated down is supposed to close that gap somewhat. Wet synthetic is miserable – whatever you have, it's important to keep it dry.

I would choose the 20 degree setup, as it is always possible to vent quilts. my 25f setup is working well even above 50. My quilts open flat and sticking out a foot makes a difference.

By conservative you mean more warmth on the bottom?

Yes

Might a 30 top and 20 under be better?

Frankly I don't think the 10 degree difference in rating is going to make a big difference in versatility. I'd drop the combo plan and start by getting a partial-length dedicated under quilt, and do both at whatever rating you determine is best for your situation.

but nothing awful is going to happen if you use your current 20 degree quilt on top and a 30 degree underneath!

I am leaning towards getting a 30F setup all together rather than a 20F setup. The 20 would let me go colder more comfortably, but in TN I am more likely to go when it is warmer than I am to go when it is cold. The 10F difference is taken from the lower part of the range and added to the higher, which is more likely when I am to go.

There are almost just too many options. I am going to try testing my HG top quilt as an underquilt – someone told me that when they have a warm underquilt they are surprised at how little they need for a topquilt.

20 under 30 over
20 under 40 over
30 under 30 over

Then there is length. 55 inch, 65, or 75? It may not be of much consequence, but for some reason there is a block in my mind about using a 3/4 underquilt. It seems like the pad would be slippery and why would I want the pad if I can have a longer quilt?

…I would keep the 20* top and purchase a 20* bottom. If you already carry a sit pad on your trips (many folks use them as a "virtual" frame for their frameless packs, especially among UL hikers), I would purchase a 3/4 length UQ. If not, then a full-length would probably be your best bet.

This temperature range will cover you for all of your stated trips in the area without supplementing. This will give you a bit of "weather man insurance" for when the forecast does something a little unexpected on most of your trips and cover the coldest ones you are going to go on, leaving your warm clothing as "weather man insurance" on those trips. Venting a top quilt at higher temperatures is very easy; simply kick out a leg or peel down the quilt over your shoulders. You'll feel cooler fairly quickly.

I would also purchase down. If you're getting your quilts soaked, you're screwed without good fire-building skills or a quick exit out of the woods anyway. Since you're not likely to be out in sub-freezing temperatures for weeks and weeks at a clip, your quilts won't suffer from slow moisture buildup (which is really the only reason, aside from initial investment cost, to choose synthetics over down) that can compromise their insulative value.

Hope it helps!

Just in general I would opt for a warmer underquilt than top quilt. In a hammock if you are going to get cold it will most likely be from below.
I use a 20 full size underquilt and since it is pretty wide and comes up the sides, I need very little top coverage.

Thank you everyone for your advice. I believe I am going to keep my 20F and just save up the money to invest in a 20F. I really would like an underquilt that could be used as a topquilt — but that may be asking too much.