The North Face
The North Face Cat's Meow 20 Eco Sleeping Bag
$200
Best Sleeping Bags · head-to-head
The North Face Cat's Meow 20 Eco Sleeping Bag vs Big Agnes Sidewinder SL 20 Mummy Sleeping Bag
A sourced, side-by-side comparison. Big Agnes Sidewinder SL 20 Mummy Sleeping Bag is cheaper at $199.96. Every spec and price links to its source.
Big Agnes
Big Agnes Sidewinder SL 20 Mummy Sleeping Bag
$199.96Cheaper
Which is better: the The North Face Cat's Meow 20 Eco Sleeping Bag or Big Agnes Sidewinder SL 20 Mummy Sleeping Bag?
The Big Agnes Sidewinder SL 20 Mummy Sleeping Bag wins 1 of the 1 specs we compare head to head; the other wins 0. The Big Agnes Sidewinder SL 20 Mummy Sleeping Bag is the cheaper at $199.96. The Big Agnes Sidewinder SL 20 Mummy Sleeping Bag both leads on specs and costs less — the straightforward pick.
See The North Face Cat's Meow 20 Eco Sleeping Bag on Amazon See Big Agnes Sidewinder SL 20 Mummy Sleeping Bag on Amazon
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Full spec sheet
✓ marks the stronger figure where "more" — or "less", for price and weight — is unambiguously better.
| Spec | The North Face Cat's Meow 20 Eco Sleeping Bag | Big Agnes Sidewinder SL 20 Mummy Sleeping Bag |
|---|---|---|
| US price | $200 | $199.96 |
| Brand | The North Face | Big Agnes |
| Released | — | — |
| Temperature rating f | 20 | 20 |
| Insulation type | synthetic | down |
| Fill power | — | 650 |
| Shape | mummy | mummy |
| Packed weight (lb) | 2.71 | 2.25 |
| Packed size | 10 x 18 in | 6.5 x 8 in |
| Zipper side | — | center |
| Product note | Heatseeker Eco recycled synthetic insulation; ISO comfort 30F, lower limit 21F; pad-attachment system; regular weight 1,231 g | 650-fill DownTek hydrophobic down with body-mapped FireLine ECO synthetic at pressure points; designed for side sleepers; center ambidextrous zipper |
Sources — The North Face Cat's Meow 20 Eco Sleeping Bag: rei.com (verified 2026-06-20). Big Agnes Sidewinder SL 20 Mummy Sleeping Bag: campman.com (verified 2026-06-20).
What's the difference between the The North Face Cat's Meow 20 Eco Sleeping Bag and Big Agnes Sidewinder SL 20 Mummy Sleeping Bag?
Where the two actually differ on the specs we track (4 of 8). Matching specs are omitted.
- Insulation type: The North Face Cat's Meow 20 Eco Sleeping Bag synthetic vs Big Agnes Sidewinder SL 20 Mummy Sleeping Bag down
- Packed weight (lb): The North Face Cat's Meow 20 Eco Sleeping Bag 2.71 vs Big Agnes Sidewinder SL 20 Mummy Sleeping Bag 2.25
- Packed size: The North Face Cat's Meow 20 Eco Sleeping Bag 10 x 18 in vs Big Agnes Sidewinder SL 20 Mummy Sleeping Bag 6.5 x 8 in
- Product note: The North Face Cat's Meow 20 Eco Sleeping Bag Heatseeker Eco recycled synthetic insulation; ISO comfort 30F, lower limit 21F; pad-attachment system; regular weight 1,231 g vs Big Agnes Sidewinder SL 20 Mummy Sleeping Bag 650-fill DownTek hydrophobic down with body-mapped FireLine ECO synthetic at pressure points; designed for side sleepers; center ambidextrous zipper