The Front Desk Review

REI Co-op · Updated June 2026

REI Co-op Magma 30 Sleeping Bag: price & specs

REI Co-op Magma 30 Sleeping Bag. Every price and spec below is linked to its source and dated — no guesses.

Source: rei.com verified STALE · 2026-06-20 ✓ corroborated verify in ledger

BronzeDeskmark51/100#9 of 13 in class

The REI Co-op Magma 30 Sleeping Bag is listed at $349 on rei.com as of 2026-06-27, #12 cheapest of 17 sleeping bags (median $200); other retailers may be lower. It earns a Bronze Deskmark — 51/100 pay-blind standing, #9 of 13 in class.

Verified Jun 27, 2026 · figures linked to their source in the table below

Cheapest sleeping bags: Coleman Brazos 20F Sleeping Bag — $59

See REI Co-op Magma 30 Sleeping Bag on Amazon Live price at the store — may differ from the dated listed price above. As an Amazon Associate we earn from qualifying purchases.
REI Co-op Magma 30 Sleeping Bag — REI Co-op
Image: backpackinglight.com (© REI Co-op)

Is the REI Co-op Magma 30 Sleeping Bag a good buy?

At $349, the REI Co-op Magma 30 Sleeping Bag is #12 cheapest of the 17 sleeping bags we track, where the median is $249.95. On the spec sheet, its temperature rating f of 30 is the highest of the 19, its packed weight of 1.25 lb is below the median of the 13, and its fill power of 850 is at the median of the 11.

Specifications

Price (US)$349 Current MSRP per rei.com and multiple 2025-2026 sources
BrandREI Co-op
Released—
Temperature rating f30
Insulation typedown
Fill power850
Shapemummy
Packed weight (lb)1.25
Packed size6 x 13 in
Zipper sideleft
Product note850 FP hydrophobic goose down; 15D Pertex Quantum shell; insulated yoke; trapezoidal footbox; ISO comfort 34F, lower limit 24F; regular weight ~1 lb 4 oz

Source: rei.com (read 2026-06-20) STALE · 2026-06-20 · corroborated by backpackinglight.com (read 2026-06-20). Verified: 30F rating, 850 FP hydrophobic goose down, mummy, regular weight ~1 lb 4 oz (1.25 lb), packed 6x13 in, left zipper, MSRP $349, ISO comfort 34F / lower limit 24F. Confirmed via rei.com data and Backpacking Light review.

Is the REI Co-op Magma 30 Sleeping Bag worth it vs cheaper sleeping bags?

REI Co-op Magma 30 Sleeping Bag against its closest cheaper and pricier sleeping bags on the specs that matter — every value sourced. See all 17 ranked

ProductPriceTemperature rating fInsulation typeFill powerShapePacked weight (lb)
REI Co-op Magma 30 Sleeping Bag this$34930down850mummy1.25
NEMO Equipment Disco Men's Endless Promise Down Sleeping Bag 15F$299.9515down650spoon2.69
Enlightened Equipment Revelation Sleeping Quilt$37020down850quilt1.24

Frequently asked questions

How much does the REI Co-op Magma 30 Sleeping Bag cost?

The REI Co-op Magma 30 Sleeping Bag has a US price of $349 (Current MSRP per rei.com and multiple 2025-2026 sources), as of 2026-06-20.

How does the REI Co-op Magma 30 Sleeping Bag compare on price?

At $349, the REI Co-op Magma 30 Sleeping Bag is #12 cheapest of the 17 sleeping bags we track, where the median is $249.95.

What are the REI Co-op Magma 30 Sleeping Bag's key specs?

REI Co-op Magma 30 Sleeping Bag (REI Co-op): temperature rating f 30, insulation type down, fill power 850, shape mummy, packed weight lb 1.25. Full sourced spec sheet verified 2026-06-20.

Price of record: $349 at rei.com, 2026-06-27. Other retailers may be lower — check the current price:

See REI Co-op Magma 30 Sleeping Bag on Amazon As an Amazon Associate we earn from qualifying purchases.

Similar sleeping bags

Nearest in price — swipe to browse. Every pick sourced and dated.

All sleeping bags ranked · Open data & methodology · Queryable via MCP

Compare with

Cheaper sleeping bags

Step up

More from REI Co-op

Related categories