3-Season Down Sleep Systems · 2026 Comparison
REI Co-op Magma 30 vs Enlightened Equipment Revelation 20°
Side-by-side published specs and one research-based review plus the other side's specs. No fabricated verdicts.
Quick Answer
The choice comes down to priorities. The REI Co-op Magma 30 is 28 g lighter on the spec sheet — pick it if minimum carry weight leads. The Enlightened Equipment Revelation 20° costs $29 less at MSRP — pick it if budget leads. Only the Enlightened Equipment Revelation 20° has a full research-based review on this site, which strengthens the case for that side.
The Specs Side by Side
Sleep SystemREI Co-op
REI Co-op Magma 30
- Price (MSRP)
- $349
- Weight
- 0.57 kg (567 g)
- Ultralight
- Yes
- Our rating
- specs only — no full review yet
Manufacturer description
850-fill down mummy, ISO ~34°F comfort / ~24°F limit, ~0.57 kg regular.
Sleep SystemEnlightened Equipment
Enlightened Equipment Revelation 20°
- Price (MSRP)
- $320
- Weight
- 0.59 kg (595 g)
- Ultralight
- Yes
- Comfort temp
- 20°F
- Our rating
- 9.4/10
Our verdict
The Enlightened Equipment Revelation 20° is the most-recommended quilt in the ultralight backpacking community for good reason. At 21 oz with 850-fill DownTek and made-to-order in Minnesota, it delivers a 20°F comfort range at a weight that no sealed sleeping bag can match. The continuous baffle design lets you push fill to the cold side, the toe box zips fully open for venting, and the buckle-and-strap pad attachment creates a draft seal that rivals a mummy bag. It's not for everyone — cold sleepers, rotisserie sleepers, and very-cold-weather users may prefer a hooded mummy, but for 3-season backpacking, it is the warmth-to-weight benchmark.
What the Numbers Say
- ▸Weight: REI Co-op Magma 30 is the lighter of the two by 28 g (0.57 kg vs 0.59 kg). For thru-hiking and any pursuit where carry weight compounds across days, that delta matters.
- ▸Price: Enlightened Equipment Revelation 20° is cheaper at MSRP by $29 ($320 vs $349). Real-world street prices vary, but the starting MSRP gap is consistent.
- ▸Ultralight classification: both products are classified ultralight in their category — built for weight-conscious backpackers from the start.
- ▸Review coverage: only the Enlightened Equipment Revelation 20° has a full research-based review (rated 9.4/10). The REI Co-op Magma 30 figures here are manufacturer-published specs only.
Detailed Breakdown
Carry weight and packed size
On the published spec sheet, the REI Co-op Magma 30 comes in at 567 grams against the 595 grams of the Enlightened Equipment Revelation 20°. That 28-gram gap may sound trivial in isolation but compounds across multi-day trips — at 25 km a day for a week, you're carrying that delta for about 175 km of trail. The REI Co-op Magma 30's ultralight classification reflects the deliberate design choices that produce the saving: thinner fabrics, simpler architectures, or fewer secondary features.
Price and total cost of ownership
MSRP gap: $29 (Enlightened Equipment Revelation 20° cheaper). For most buyers that's the only price number that matters short-term. Long-term cost depends on durability and warranty handling: a product that lasts seven seasons at $349 costs less per use than a product that lasts three at $320. Without long-term field data on both we won't claim a winner on durability, but it's the lens to apply if you re-sell or replace gear infrequently. Look for current sales on either before assuming MSRP is what you'll pay.
Materials and durability
Material composition for both products comes from the manufacturer product pages and is not always reported in directly comparable units. The REI Co-op Magma 30 carries the manufacturer's published spec only; the Enlightened Equipment Revelation 20° has a full research-based review (rated 9.4/10). For the reviewed product, the durability verdict in the linked review draws on published testing and owner feedback. For the spec-only product, treat material claims as starting points, not verified data.
Features and ergonomics
Manufacturer feature descriptions: the REI Co-op Magma 30 — 850-fill down mummy, ISO ~34°F comfort / ~24°F limit, ~0.57 kg regular.. The Enlightened Equipment Revelation 20° — Made-to-order ultralight backpacking quilt with 850-fill DownTek hydrophobic down, continuous horizontal baffles, full-length zipper, and a closed toe box. Rated to 20°F at a configured weight near 21 oz (regular/wide, 850-fill). Pay particular attention to fit, adjustability, and hand-feel — three dimensions that don't show on a spec sheet and that disproportionately determine whether you'll actually reach for the gear after the first trip.
Use-case fit
The 3-season down sleep systems category covers a wide range of trip styles. For weight-counted thru-hikes, lean toward whichever is lighter on this page — every gram in your pack rides with you for thousands of kilometers. For weekend trips and base-camp days, weight matters less and durability, comfort, and feature count matter more — the heavier of the two on this page often makes more sense in those scenarios. For three-season generalist use, our recommendation: prioritize the product you can read a full research-based verdict on — that's the Enlightened Equipment Revelation 20° here.
Brand support and availability
REI Co-op and Enlightened Equipment both produce 3-season down sleep systems for the North American and EU markets. Availability varies: smaller cottage brands may require direct-from-manufacturer ordering with 2-6 week lead times, while bigger brands stock through REI, Backcountry, and large EU outdoor chains with same-week shipping. Before buying either, check the manufacturer's warranty terms (often 1, 2, or 10 years depending on brand culture) and the brand's reputation for honoring claims on minor failures versus catastrophic ones. Our research-based review notes warranty interactions where relevant, based on owner reports.
Frequently Asked Questions
Which is lighter, the REI Co-op Magma 30 or the Enlightened Equipment Revelation 20°?
On published manufacturer specs, the REI Co-op Magma 30 is the lighter of the two by 28 grams (0.57 kg vs 0.59 kg). For ultralight backpackers counting grams in the 3-season down sleep systems category, that's a meaningful difference.
Which costs less, the REI Co-op Magma 30 or the Enlightened Equipment Revelation 20°?
At MSRP, the Enlightened Equipment Revelation 20° costs $29 less than the REI Co-op Magma 30 ($320 vs $349). Real-world prices fluctuate with sales and seasonal promotions, but the spec-sheet starting price is clear.
Does this site have full reviews of both products?
The Enlightened Equipment Revelation 20° has a full research-based review (rated 9.4/10), drawing on published testing and owner feedback. The REI Co-op Magma 30 figures on this page are published manufacturer specs only.
Is the REI Co-op Magma 30 ultralight by industry standards?
Yes. The REI Co-op Magma 30 is classified ultralight in our database (0.57 kg, sub-threshold for its sleep system category). Ultralight 3-season down sleep systems typically means built for thru-hikers and gram counters rather than three-season car-camping use.
Is the Enlightened Equipment Revelation 20° ultralight by industry standards?
Yes. The Enlightened Equipment Revelation 20° is classified ultralight in our database (0.59 kg, sub-threshold for its sleep system category). Built for thru-hikers and weight-conscious backpackers.
Is the price difference worth it?
The REI Co-op Magma 30 costs $29 more than the Enlightened Equipment Revelation 20° but is 28 g lighter. That's roughly $1.04 per gram saved. Whether that's worth it depends on how often you carry it: a thru-hiker saving grams every day for months will rationalize the premium more easily than a weekend backpacker.
Where can I read the full review?
Only the Enlightened Equipment Revelation 20° has a full review at https://peakgearguide.com/reviews/enlightened-equipment-revelation. The REI Co-op Magma 30 does not have a full review yet — we list its manufacturer specifications only.
Bottom Line
Winner on weight: the REI Co-op Magma 30 by 28 g (0.57 kg vs 0.59 kg). If your trip style punishes grams, that's the pick.
Winner on price: the Enlightened Equipment Revelation 20° at $320 versus $349 for the REI Co-op Magma 30 — a $29 gap that may close or widen with current sales.
Our overall lean: the Enlightened Equipment Revelation 20° is the safer pick because it has a full research-based review (9.4/10) where published testing and owner feedback corroborate the spec claims. The REI Co-op Magma 30 may well be excellent, but we can't say so from spec data alone.
Related Guides & Reviews
Buying guide
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Full review
Enlightened Equipment Revelation 20° — full review
Research-based verdict from published testing and owner feedback. Rated 9.4/10.
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