The Best Underquilts for the ENO DoubleNest
Two quilts publish DoubleNest compatibility in writing. Everything else in the category is a dimension you have to check yourself.
By Mike M. · Last updated
Knot & Nap is reader-supported. We earn from qualifying purchases as an Amazon Associate, at no extra cost to you. Commissions never decide what gets recommended — here is how we pick.
The ENO Ember is the safe pick: ENO states it is compatible with all its hammocks except the DayLoft and SuperNest, which includes the DoubleNest, and it is rated 40 to 60 degrees F at 27 oz. For colder nights, the Vulcan is the same fit rated 30 to 50 degrees F.
Part of our hammock gear hub, and a DoubleNest-specific cut of the best hammock underquilts. The DoubleNest is the most widely sold camping hammock there is — 114 by 76 inches, 400 lb, 19 oz per Treeline Review's spec table — so it is worth answering the insulation question for that hammock specifically.
Quick picks
Tap any row to jump to the full write-up. Prices are not shown anywhere on this site — we link straight to Amazon so you see the live figure.
| # | Product | Best for | Headline spec | Price |
|---|---|---|---|---|
| 1 | ENO Ember UnderQuiltENO's own synthetic quilt, and the only one whose fit with a DoubleNest is a published compatibility statement rather than an assumption. | Best underquilt for a DoubleNest | 40 to 60 degrees F (4 to 15 C) | |
| 2 | ENO Vulcan UnderQuiltThe Ember's warmer sibling — PrimaLoft down to 30 F, the same published DoubleNest compatibility, one ounce heavier. | Colder nights, same fit | 30 to 50 degrees F (-1 to 10 C) | |
| 3 | Outdoor Vitals Aerie Down Underquilt800+ fill down in four temperature ratings that also works as a sleeping bag — the quilt for people who do not only hang. | Down warmth, and it converts | 0, 15, 30 and 45 degrees F options | |
| 4 | Onewind Solstice Down Hammock UnderquiltA down underquilt rated 32°F to 56°F — the warm end of Onewind's range and the one for shoulder-season nights. | Cold nights | Down insulation | |
| 5 | Onewind Hammock UnderquiltOnewind's standard underquilt range, rated 35–50°F and 45–70°F depending on the model you pick. | Three-season warmth | Temperature ratings from 35°F to 50°F (2°C to 10°C) and 45°F to 70°F (7°C to 21°C) depending on model | |
| 6 |  Klymit Insulated Hammock V Sleeping PadA 47-inch-wide pad with wings and non-slip zones — the one sleeping pad designed to stay under you in a hammock instead of squirting out. | The pad built for hammocks | R-value 4.4 insulated; 1.6 uninsulated |
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The numbers, side by side
| Quilt | Rating | Weight | Insulation | DoubleNest fit |
|---|---|---|---|---|
| ENO Ember | 40–60 F | 27 oz | Recycled polyester, 160 g | Stated by ENO |
| ENO Vulcan | 30–50 F | 28 oz | PrimaLoft Gold 100 g + Black 80 g | Stated by ENO |
| Outdoor Vitals Aerie | 0 / 15 / 30 / 45 F options | 1.7 lb (30 F), 2.1 lb (20 F) | 800+ fill down | Not published |
| Onewind Solstice | 32–56 F | Not published | Down | Not published |
| Onewind standard | 35–50 F and 45–70 F by model | Not published | Synthetic | Not published |
| Klymit Insulated Hammock V (pad) | R-value 4.4 | 35 oz | Klymalite synthetic | Fits inside; 47 in wide |
The ENO quilts are not the warmest or the lightest here. They are the only two whose fit is a manufacturer statement rather than your own measurement, and on a first underquilt purchase that is worth more than ten degrees of rating.
1. Best underquilt for a DoubleNest
ENO Ember UnderQuilt
ENO's own synthetic quilt, and the only one whose fit with a DoubleNest is a published compatibility statement rather than an assumption.
Specifications
- 40 to 60 degrees F (4 to 15 C)
- 100% recycled polyester insulation (160 g) in dual-layer offset quilting
- 27 oz / 754 g
- 6 ft 10 in x 4 ft laid out; packs to 12 x 7 x 7 in
- ENO states compatibility with all ENO hammocks except the DayLoft and SuperNest
Source: eaglesnestoutfittersinc.com Ember UnderQuilt product page, 2026. We publish specs we can attribute and leave the rest blank rather than assuming a typical value.
What it does well
- Published compatibility with the DoubleNest, not inferred from dimensions
- Synthetic keeps working damp, which matters under a hammock
- Recycled insulation at a mainstream price
Where it falls short
- 40 to 60 F is a summer and shoulder-season range, not a cold-weather one
- 27 oz and around 9 liters packed is bulky against a down quilt
Illustrative photograph of the category, not this exact product.
2. Colder nights, same fit
ENO Vulcan UnderQuilt
The Ember's warmer sibling — PrimaLoft down to 30 F, the same published DoubleNest compatibility, one ounce heavier.
Specifications
- 30 to 50 degrees F (-1 to 10 C)
- PrimaLoft Gold (100 g) plus PrimaLoft Black (80 g), dual-layer offset quilting
- 28 oz / 801 g
- 6 ft 6 in x 4 ft 5 in; 9.6 L packed
- Comfortably fits users up to 6 ft 2 in
- Compatible with all ENO hammocks except the DayLoft and SuperNest
Source: eaglesnestoutfittersinc.com Vulcan UnderQuilt product page, 2026. We publish specs we can attribute and leave the rest blank rather than assuming a typical value.
What it does well
- Twenty degrees warmer at the bottom of its range than the Ember, for one extra ounce
- PrimaLoft holds loft when damp
- Publishes a user height limit, which underquilts rarely do
Where it falls short
- Costs substantially more than the Ember
- The 6 ft 2 in user limit rules out the tallest hangers
Illustrative photograph of the category, not this exact product.
3. Down warmth, and it converts
Outdoor Vitals Aerie Down Underquilt
800+ fill down in four temperature ratings that also works as a sleeping bag — the quilt for people who do not only hang.
Specifications
- 0, 15, 30 and 45 degrees F options
- 800+ fill power down
- 30 F model 1.7 lb; 20 F model 2.1 lb
- 20D ripstop shell with a VitalDry DWR finish
- Converts to a sleeping bag; two can be joined into a double
Source: Outdoor Vitals Aerie listings and published spec figures, 2026. We publish specs we can attribute and leave the rest blank rather than assuming a typical value.
What it does well
- The only quilt here with a genuine cold-weather rating
- Doubles as a sleeping bag, so it earns its place on ground trips too
- Down packs far smaller than the synthetic ENO quilts
Where it falls short
- Down loses loft wet, and the underside of a hammock is where condensation lands
- Fit with a specific hammock is not published the way ENO's is
Illustrative photograph of the category, not this exact product.
4. Cold nights
Onewind Solstice Down Hammock Underquilt
A down underquilt rated 32°F to 56°F — the warm end of Onewind's range and the one for shoulder-season nights.
Specifications
- Down insulation
- Rated 32°F to 56°F (0°C to 15°C)
Source: onewindoutdoors.com product page, 2026. We publish specs we can attribute and leave the rest blank rather than assuming a typical value.
What it does well
- Down packs smaller than synthetic for the same warmth
- A published temperature rating, which not every underquilt has
Where it falls short
- Down loses loft when wet, which matters under a hammock
- Costs more than synthetic
Illustrative photograph of the category, not this exact product.
5. Three-season warmth
Onewind Hammock Underquilt
Onewind's standard underquilt range, rated 35–50°F and 45–70°F depending on the model you pick.
Specifications
- Temperature ratings from 35°F to 50°F (2°C to 10°C) and 45°F to 70°F (7°C to 21°C) depending on model
Source: onewindoutdoors.com, 2026. We publish specs we can attribute and leave the rest blank rather than assuming a typical value.
What it does well
- Two rating bands means you can match the quilt to your actual season
- Underquilts beat sleeping pads for hammock insulation
Where it falls short
- You have to read carefully to buy the right band
- Fill weight is not published per model
Illustrative photograph of the category, not this exact product.
6. The pad built for hammocks
Klymit Insulated Hammock V Sleeping Pad
A 47-inch-wide pad with wings and non-slip zones — the one sleeping pad designed to stay under you in a hammock instead of squirting out.
Specifications
- R-value 4.4 insulated; 1.6 uninsulated
- 35 oz
- 78 x 47 x 2.5 in inflated; packs to 5 x 10 in
- Klymalite synthetic insulation in the V chambers
- Non-slip zones; Klymit claims 180 degrees of draft protection
Source: Klymit and REI product listings for the Insulated Hammock V, 2026. We publish specs we can attribute and leave the rest blank rather than assuming a typical value.
What it does well
- 47 in wide with wings, so shoulders and hips stay on it
- R-4.4 is a real winter number that no summer underquilt matches
- Works on the ground too, which an underquilt does not
Where it falls short
- A pad still compresses your insulation and squeaks against nylon
- 35 oz is heavier than the ENO Ember underquilt
Illustrative photograph of the category, not this exact product.
Why a DoubleNest needs an underquilt at all
Because your sleeping bag stops working underneath you. Lying in a hammock compresses the insulation flat against the fabric, and air moves freely under the whole length of you. That is the cold-shoulder problem every first-time hammock camper meets, and it is not solved by a warmer bag — it is solved by insulation hung outside the hammock, or by a pad inside it.
The full explanation sits in hammock camping in rain and cold, and the pad-versus-quilt decision has its own page at underquilt vs sleeping pad.
Length and width, if you buy a third-party quilt
- The ENO quilts are 6 ft 10 in and 6 ft 6 in long — three-quarter quilts, not full length. They cover torso to knees, which is where the heat loss is.
- A DoubleNest is 114 in (9 ft 6 in) long. A quilt does not need to match that; it needs to cover you, not the hammock.
- Check the suspension length. Third-party quilts use shock cord that loops over the hammock's ends. Too short and it pulls the quilt away from the fabric, which is exactly the gap you are trying to remove.
- Watch the user height limits. ENO publishes 6 ft 2 in for the Vulcan. Underquilts rarely state this, and it matters more than the temperature number if you are tall.
Down or synthetic under a hammock
| Down (Aerie, Solstice) | Synthetic (Ember, Vulcan) | |
|---|---|---|
| Warmth for weight | Better | Heavier for the same rating |
| Packed size | Much smaller | Bulky — the Vulcan is 9.6 L |
| Wet performance | Loses loft | Keeps most of it |
| Where it sits | Outside the hammock, under condensation | Same place, less affected |
| Cost | Higher | Lower |
The position of an underquilt is the argument for synthetic. It hangs on the outside of the hammock, which is the surface condensation forms on and the surface rain reaches first if your tarp is small. Down is the right answer for pack weight and the wrong answer for a wet week.
What we would buy
- A first underquilt for a DoubleNest: ENO Ember. Published fit, synthetic, three-season.
- Shoulder season and colder: ENO Vulcan, for 30 F at one extra ounce.
- Genuine cold, and it doubles as a sleeping bag: Outdoor Vitals Aerie in the rating you need.
- Cutting cost: the Onewind range, checking which temperature band you are buying.
- Camping on the ground half the time: the Klymit pad instead, which works in both places.
Common questions
Which underquilt fits an ENO DoubleNest?
ENO states that both the Ember and the Vulcan UnderQuilt are compatible with all ENO hammocks except the DayLoft and SuperNest, which covers the DoubleNest. Third-party quilts generally fit too, but their listings do not say so — you are checking the shock-cord length and quilt width yourself.
How warm an underquilt do I need for a DoubleNest?
Match it to your nights, not to the hammock. The ENO Ember covers 40 to 60 F, the Vulcan 30 to 50 F, and the Outdoor Vitals Aerie goes to 0 F in its warmest version. Hammock camping runs colder than the same night on the ground, so do not buy at the edge of your expected temperature.
Can I use a sleeping pad in a DoubleNest instead?
Yes, and the Klymit Insulated Hammock V is 47 inches wide with wings specifically so it stays under you. It is the cheaper route and it works on the ground too; the trade-offs are set out in underquilt vs sleeping pad.
Do underquilts go inside or outside the hammock?
Outside. An underquilt hangs beneath the hammock so your weight never compresses it. Insulation inside the hammock gets flattened under you, which is the whole reason a sleeping bag alone does not work.
Does an underquilt fit a DoubleNest with a bug net on?
Yes — a net like the ENO Guardian surrounds the hammock and the underquilt hangs below it. What does conflict is a fully integrated hammock like the JungleNest, where you should check the net's own suspension before adding a quilt.
Sources
Every specification on this page traces to one of these. Where a recommendation rests on another publication's hands-on testing, we name it — we do not run a test lab.
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