REI Co-op Magma 15 Review (2026)

Name: REI Co-op Magma 15
Brand: REI Co-op
Price: 319.00 USD
Availability: InStock
Rating: 8.7 (1 reviews)

Most people do not need a custom-sewn quilt with a 6-week lead time. They need a reliable, warm sleeping bag that ships in three days and can be returned if the fit is wrong. The REI Magma 15 is that bag. At $319 with 850 fill power down, it outperforms the price. REI is a consumer cooperative — not a standard retailer — and their house brand gear has improved significantly. It remains the right call to most people just getting into camping.

Check price at REI Co-op →

$319 retail

8.7

/10

TrailCraft Score

What Works

850 fill power at accessible pricing
Ships fast — no lead time
Try before you buy at any REI store
REI co-op return policy is genuinely good
Good size range available

Limitations

1-year warranty vs lifetime on cottage brands
Made overseas
Slightly heavier than comparable cottage options

Specifications

Fill Power850 goose down

Weight (15F)28 oz / 794g

Temp Rating15F / -9C

ZipperFull anti-snag

HoodAnatomical

ShellPertex Microlight

Warranty1 Year + co-op policy

OriginVietnam

Score Breakdown

Warmth

9.0

Weight / Compression

8.8

Build Quality

8.5

Value for Money

8.9

Brand & Warranty

8.4

What Sets It Apart

The REI Magma 15 is one of the most commonly recommended sleeping bags for new and casual campers. Not the lightest option in its class, but the most reliable default recommendation for most campers.

850 fill down at mainstream pricing — the right answer for most campers

Who This Is For

The REI Co-op Magma 15 ranks #4 of 4 in this category and is a worthwhile option for the right buyer. It is well-suited for hikers and campers who want REI's house brand Magma 15 delivers 850 fill power down performance at $319. Ships in days not weeks and can be tried in-store before buying, and it performs best when used for the purpose it was designed around.

A note on pricing and links: Prices listed are current as of April 2026 and may change. Always verify before buying. Some links on this page are affiliate links — if you buy through them, I earn a small commission at no extra cost to you. It helps fund the testing. It does not change my ranking.

How It Compares

Within this category, the REI Magma 15 ranks #4 out of 4 products tested. It earns its place in the roundup for the right use case, but the higher-ranked options are better choices for most hikers.

See the full comparison

All 4 options in this category ranked side by side — specs, scores, and pricing.

View Full Category Comparison →

Common Questions

Is the Magma 15 warmer than its rating in practice?

For average sleepers, close to its rating. If you sleep cold, treat it as a 25F bag and add a liner for colder nights.

How does it compare to Marmot or Nemo bags?

The REI Magma uses 850 fill power which is higher than many Marmot or Nemo options at the same price. The co-op return policy is a practical advantage.

Can I try it in-store?

Yes — REI stocks the Magma at most locations.