10 models to compare

Sleeping-bag liner: which has the space and weight you want?

COCOON’s MummyLiner COOLMAX is 86 in long at 9 oz; the Cotton version is 95 in at 12 oz. You still need shoulder room.

Cotton adds length and shoulder width at more weight: 36 in against COOLMAX’s 32 in.

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With no preferences selected: MummyLiner COOLMAX — Bluemax is one option to compare.

No hands-on testingMethod and sources

MummyLiner COOLMAX — Bluemax · first with a product link

Model / item: CMM35

Weight: 9 oz.
Length: 86 in.

What to note:

Foot width: 24 in.

View at COCOON

If you choose Up to 4.7 oz for weight, the first option with a product link becomes MummyLiner RipStop Silk — Touareg.

10 models compared; 10 have a product-page link.

The picks

5 options to compare

Compare the details that matter to your setup.

An option to compare

MummyLiner COOLMAX — Bluemax

Weight: 9 oz.

Model / item: CMM35

Key details

Length: 86 in.

What to note

Foot width: 24 in.

Compare specs: Weight: 9 oz here; 12 oz on MummyLiner Cotton — Cactus Blue.

Weight: 9 ozLength: 86 inShoulder width: 32 in

See all 4 specs

Weight9 oz

Length86 in

Shoulder width32 in

Foot width24 in

4 of 4 specs available · source checked September 26, 2026 · Source ↗
COCOON · Product page checked September 26, 2026

View at COCOON Compare

Weight: Up to 4.7 oz

MummyLiner RipStop Silk — Touareg

Shoulder width: 36 in.

Model / item: SM24-RS

Key details

Foot width: 22 in.

What to note

Length: 95 in.

Compare specs: Shoulder width: 36 in here; 35 in on MummyLiner Silk — Dark Olive Green.

Weight: 4.7 ozLength: 95 inShoulder width: 36 in

See all 4 specs

Weight4.7 oz

Length95 in

Shoulder width36 in

Foot width22 in

4 of 4 specs available · source checked September 26, 2026 · Source ↗
COCOON · Product page checked September 26, 2026

View at COCOON Compare

Length: At least 95 in

MummyLiner Cotton — Cactus Blue

Weight: 12 oz.

Model / item: CM14

Key details

Shoulder width: 36 in.

What to note

Foot width: 22 in.

Compare specs: Weight: 12 oz here; 13 oz on MummyLiner Cotton / Poly — Touareg.

Weight: 12 ozLength: 95 inShoulder width: 36 in

See all 4 specs

Weight12 oz

Length95 in

Shoulder width36 in

Foot width22 in

4 of 4 specs available · source checked September 26, 2026 · Source ↗
COCOON · Product page checked September 26, 2026

View at COCOON Compare

Also compare 4

MummyLiner Cotton / Poly — Touareg

Weight: 13 oz.

Model / item: PCM24

Key details

Foot width: 22 in.

What to note

Length: 95 in.

Compare specs: Weight: 13 oz here; 16 oz on MummyLiner Cotton Flannel — African Rainbow.

Weight: 13 ozLength: 95 inShoulder width: 35 in

See all 4 specs

Weight13 oz

Length95 in

Shoulder width35 in

Foot width22 in

4 of 4 specs available · source checked September 26, 2026 · Source ↗
COCOON · Product page checked September 26, 2026

View at COCOON Compare

Also compare 5

MummyLiner Cotton Flannel — African Rainbow

Weight: 16 oz.

Model / item: FM23

Key details

Foot width: 22 in.

What to note

Length: 95 in.

Compare specs: Weight: 16 oz here; 7.4 oz on MummyLiner Egyptian Cotton — Natural.

Weight: 16 ozLength: 95 inShoulder width: 35 in

See all 4 specs

Weight16 oz

Length95 in

Shoulder width35 in

Foot width22 in

4 of 4 specs available · source checked September 26, 2026 · Source ↗
COCOON · Product page checked September 26, 2026

View at COCOON Compare

Comparing MummyLiner COOLMAX — Bluemax · MummyLiner Cotton — Cactus Blue

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The facts that differ

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Differences only

0 identical specs shown. Details that do not apply to these models are omitted.

Published specification comparison
Spec	MummyLiner COOLMAX — BluemaxModel / item: CMM35No preferences selected.	MummyLiner Cotton — Cactus BlueModel / item: CM14No preferences selected.
Weight	9 oz	12 oz
Length	86 in	95 in
Shoulder width	32 in	36 in
Foot width	24 in	22 in

MummyLiner COOLMAX — Bluemax

Model / item: CMM35

No preferences selected.

Weight: 9 oz
Length: 86 in
Shoulder width: 32 in
Foot width: 24 in

MummyLiner Cotton — Cactus Blue

Model / item: CM14

No preferences selected.

Weight: 12 oz
Length: 95 in
Shoulder width: 36 in
Foot width: 22 in

MummyLiner COOLMAX — Bluemax

View at COCOON

MummyLiner Cotton — Cactus Blue

View at COCOON

Compare all 10 models

— = no verified listing yet. The published order is independent of links.

All models and their decision specs
Product	How it compares	Key spec	Compare	Action
MummyLiner COOLMAX — Bluemax	Compared with MummyLiner Cotton — Cactus Blue: weight, 9 oz vs 12 oz. Model / item: CMM35	Weight: 9 oz	Compare	View at COCOON
MummyLiner Cotton — Cactus Blue	Compared with MummyLiner Cotton / Poly — Touareg: weight, 12 oz vs 13 oz. Model / item: CM14	Weight: 12 oz	Compare	View at COCOON
MummyLiner Cotton / Poly — Touareg	Compared with MummyLiner Cotton Flannel — African Rainbow: weight, 13 oz vs 16 oz. Model / item: PCM24	Weight: 13 oz	Compare	View at COCOON
MummyLiner Cotton Flannel — African Rainbow	Compared with MummyLiner Egyptian Cotton — Natural: weight, 16 oz vs 7.4 oz. Model / item: FM23	Weight: 16 oz	Compare	View at COCOON
MummyLiner Egyptian Cotton — Natural	Compared with MummyLiner Merino Wool — Black: weight, 7.4 oz vs 22 oz. Model / item: ECM13	Weight: 7.4 oz	Compare	View at COCOON
MummyLiner Merino Wool — Black	Compared with MummyLiner Microfiber — Cranberry: weight, 22 oz vs 8.1 oz. Model / item: MWM99	Weight: 22 oz	Compare	View at COCOON
MummyLiner Microfiber — Cranberry	Compared with MummyLiner Performer Thermolite — Glow: weight, 8.1 oz vs 9.9 oz. Model / item: MFM96	Weight: 8.1 oz	Compare	View at COCOON
MummyLiner Performer Thermolite — Glow	Compared with MummyLiner RipStop Silk — Touareg: weight, 9.9 oz vs 4.7 oz. Model / item: TLPM97	Weight: 9.9 oz	Compare	View at COCOON
MummyLiner RipStop Silk — Touareg	Compared with MummyLiner Silk — Dark Olive Green: shoulder width, 36 in vs 35 in. Model / item: SM24-RS	Weight: 4.7 oz	Compare	View at COCOON
MummyLiner Silk — Dark Olive Green	Weight: 4.7 oz; Length: 95 in. Model / item: SM70	Weight: 4.7 oz	Compare	View at COCOON

MummyLiner COOLMAX — Bluemax

Compared with MummyLiner Cotton — Cactus Blue: weight, 9 oz vs 12 oz.

Model / item: CMM35

Weight: 9 oz

CompareView at COCOON

MummyLiner Cotton — Cactus Blue

Compared with MummyLiner Cotton / Poly — Touareg: weight, 12 oz vs 13 oz.

Model / item: CM14

Weight: 12 oz

CompareView at COCOON

MummyLiner Cotton / Poly — Touareg

Compared with MummyLiner Cotton Flannel — African Rainbow: weight, 13 oz vs 16 oz.

Model / item: PCM24

Weight: 13 oz

CompareView at COCOON

MummyLiner Cotton Flannel — African Rainbow

Compared with MummyLiner Egyptian Cotton — Natural: weight, 16 oz vs 7.4 oz.

Model / item: FM23

Weight: 16 oz

CompareView at COCOON

MummyLiner Egyptian Cotton — Natural

Compared with MummyLiner Merino Wool — Black: weight, 7.4 oz vs 22 oz.

Model / item: ECM13

Weight: 7.4 oz

CompareView at COCOON

MummyLiner Merino Wool — Black

Compared with MummyLiner Microfiber — Cranberry: weight, 22 oz vs 8.1 oz.

Model / item: MWM99

Weight: 22 oz

CompareView at COCOON

MummyLiner Microfiber — Cranberry

Compared with MummyLiner Performer Thermolite — Glow: weight, 8.1 oz vs 9.9 oz.

Model / item: MFM96

Weight: 8.1 oz

CompareView at COCOON

10 catalog models

How the comparison works

Your choices are compared with each model’s product details. A missing or conflicting value stays unknown and cannot satisfy a choice you select. The starting order helps you browse; it does not rate real-world performance.

Source dates appear with each link below. A source date does not confirm today's price or stock.

Finder methodology Report a correction

Sources for all 10 models

MummyLiner COOLMAX — Bluemax: Source 1 ↗ · September 26, 2026
MummyLiner Cotton — Cactus Blue: Source 1 ↗ · September 26, 2026
MummyLiner Cotton / Poly — Touareg: Source 1 ↗ · September 26, 2026
MummyLiner Cotton Flannel — African Rainbow: Source 1 ↗ · September 26, 2026
MummyLiner Egyptian Cotton — Natural: Source 1 ↗ · September 26, 2026
MummyLiner Merino Wool — Black: Source 1 ↗ · September 26, 2026
MummyLiner Microfiber — Cranberry: Source 1 ↗ · September 26, 2026
MummyLiner Performer Thermolite — Glow: Source 1 ↗ · September 26, 2026
MummyLiner RipStop Silk — Touareg: Source 1 ↗ · September 26, 2026
MummyLiner Silk — Dark Olive Green: Source 1 ↗ · September 26, 2026

The wider shoulder does not come with the wider foot

COCOON MummyLiner™ RipStop Silk measures 95 in long, 36 in across the shoulders and 22 in across the foot. MummyLiner™ COOLMAX® is shorter at 86 in with 32 in shoulders, yet its foot is wider at 24 in. Compare the shape where you need room rather than length alone.

These are liner dimensions. They do not describe a sleeper's height or girth limit, and the hood and shaped foot area can change the usable space. We have compared COCOON's measurements without sleeping inside these liners.

Fabric weight is separate from a warmth claim

MummyLiner™ Silk and MummyLiner™ RipStop Silk each weigh 4.7 oz. MummyLiner™ Merino Wool weighs 22 oz, with the same 86 in length and 32 in shoulder width as MummyLiner™ COOLMAX® at 9 oz. A larger weight therefore need not mean larger dimensions.

Use the fabric names to investigate care and feel on COCOON's product pages. These dimensions and weights do not predict added warmth or a safe sleeping temperature, so do not use this comparison to extend a sleeping bag's temperature rating.

Before you buy

Does this finder predict extra warmth?

It compares listed dimensions and weight. It does not turn a maker’s added-warmth claim into a sleeping-bag temperature rating.

Does liner length equal maximum user height?

The hood and shaped foot area use part of the overall length. Check the maker’s fit guidance. COCOON’s MummyLiner COOLMAX is 86 in long at 9 oz; the Cotton version is 95 in at 12 oz. You still need shoulder room. Cotton adds length and shoulder width at more weight: 36 in against COOLMAX’s 32 in. Liner dimensions describe fabric space rather than sleeper size; neither material establishes an added-warmth rating.

Why are all ten liners from COCOON?

This comparison covers ten distinct constructions with consistently published dimensions and weight. It is a single-brand selection, not a market-wide performance comparison. Each row represents one fabric construction rather than a color or size duplicate. These are published measurements rather than comfort or warmth ratings.