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Retoo hooded mummy bag, 210 × 73 cm review

A hooded mummy bag that publishes a comfort range twenty degrees wide, names no standard behind it, and gives neither a weight nor a packed size.

The bottom line A roomy hooded mummy with a length published and almost nothing else. For summer nights within reach of a car it will do the job; anyone comparing bags on temperature or carried weight has nothing here to compare.

What this listing puts on record

A mummy shape with a hood, polyester with a synthetic fill, a size of 210 × 73 cm, a stated comfort range of 5 °C to 25 °C narrowing to 10 °C to 20 °C, a water-repellent coating, full opening into a blanket, and a storage cover in the box.

The temperature, and what stands behind it

Two ranges are published and no standard is named. That is the pattern on this whole shelf, and it is worth saying once clearly: a comfort figure only means something when a standard is named beside it.

Under EN 13537 and its successor ISO 23537, comfort and limit figures are measured on a heated mannequin under controlled conditions — an indication, never a promise, and never a substitute for the maker’s own guidance. A range written in prose has had none of that done to it.

What is absent

Weight. Packed size. Fill weight. Shell denier. Four of the ten lines a sleeping bag is compared on, and none of them appears. The listing sells the shape, the size and the seasons.

What you can use

The 210 × 73 cm is real and it is the figure that decides fit. A mummy bag that is too short pulls the hood off your head; one that is too wide has air in it you have to heat.

Before ordering

Measure your own height and add room for a hood and a foot box. Then decide whether an unstated carried weight matters for the trips you take.

Availability

Selling between 15 € and 20 € across the German, French, Italian and Spanish Amazon stores when this page was checked.

It also sells on the British Amazon store in the local currency, which the range above does not cover — that range counts euro stores and nothing else.

Nothing came back from the American Amazon store, so the buy link there opens a local search instead of a page that is not there.

Every figure in this section is what Keepa returned on the day this page was last updated. Prices and offers change without notice.

Prices quoted in this text were read on 6 September 2026. The live price is at the top of the page.

What it does well, and where it gives way

Strengths

  • States the shape and the hood plainly, and explains what the mummy cut is for: less air to warm around the body
  • Publishes its full dimensions at 210 × 73 cm, which is the measurement that decides whether it fits you
  • Opens fully into a blanket, and a storage cover is included

Compromises

  • The comfort range spans twenty degrees and no standard is named, so it cannot be lined up against a bag that quotes one
  • No weight and no packed size, on a bag sold for hiking and camping where both decide whether it is carried
  • No fill weight and no shell denier, so nothing published explains where the warmth comes from

Specifications

Comfort ratingGiven as a range of 5 °C to 25 °C, narrowing to 10 °C to 20 °C in what the maker calls pleasant conditions — an unstandardised figure
Limit ratingNot published on the listing
Standard quotedNone named — neither EN 13537 nor ISO 23537 appears anywhere in the listing
Fill powerNot published on the listing — fill power describes down, and this bag is stated as synthetic
Fill weightNot published on the listing
Down or syntheticSynthetic — stated as polyester filled with a synthetic insulating material
Shell denierNot published on the listing — polyester is named, with a water-repellent coating, and no yarn weight
Baffle constructionNot published on the listing
Packed sizeNot published on the listing — a cover is supplied and its packed dimensions are not given
WeightNot published on the listing
Amazon referenceB0DGTY6XTY (same reference on 5 Amazon marketplaces)
EAN5904806168016

What people ask before buying

What does a twenty-degree comfort range tell you?

Less than it looks. A comfort figure under EN 13537 or ISO 23537 is a single temperature measured on a heated mannequin under fixed conditions. A range described in words is a description of the seasons the maker has in mind, not a measurement, and it is not comparable with a tested figure.

Why is fill weight missing on a synthetic bag?

Synthetic bags are usually described by the fill density in grams per square metre rather than by the grams in the bag. This listing publishes neither, which leaves the insulation entirely undescribed — unusual even on this shelf.