---
title: "Cumulus Comforter M400"
name: "Cumulus Comforter M400"
brand: "Cumulus"
description: "Cumulus Comforter M400 is a lightweight, versatile down comforter that you can also use as a quilt, an underquilt for your hammock, or as an extra insulation layer for your sleeping bag or quilt."
handle: "cumulus-comforter-m400"
sku: "CUCO-M400"
canonical_url: "https://gramino.com/p/cumulus-comforter-m400"
html_url: "/p/cumulus-comforter-m400"
md_url: "/p/cumulus-comforter-m400.md"
locale: "en"
market: "eu"
currency: "EUR"
price: 318.2
price_formatted: "€318.20"
availability: "OutOfStock"
item_condition: "NewCondition"
category: "Quilts"
category_path: "/c/sleep/quilts"
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  - name: "Cumulus Comforter M400"
    url: "/p/cumulus-comforter-m400"
last_updated: "2026-10-13"
---

# Cumulus Comforter M400

Brand: Cumulus · Category: [Quilts](/c/sleep/quilts.md)
Chamber design: H-shaped chambers · Down-to-feather ratio: 95/5 (feather/down) · Season: 3-season

## Offer

- Price: €318.20
- Availability: Out of stock
- Condition: New
- Buy on the website: [HTML product page](/p/cumulus-comforter-m400)

## Description

Cumulus Comforter M400 is a lightweight, versatile down comforter that you can also use as a quilt, an underquilt for your hammock, or as an extra insulation layer for your sleeping bag or quilt. On its own, it's perfect for summer and warmer spring and autumn days, but it also performs great in cooler conditions at cabins or as a liner for your sleeping bag.

## Features you'll love.

Lightweight, versatile down quilt for comfy sleep outdoors or at cabins.

## Specifications

Cumulus Comforter M400 is a versatile all-purpose down comforter that gives you the maximum possible freedom of use:

- **Blanket** – You can use it as a classic down blanket in cabins or outside during warmer nights.
- **Quilt** – You can turn the blanket into a classic quilt with a drawstring at the feet and simply attach it to your sleeping pad using elastic straps.
- **Underquilt** – You can easily hang the blanket under your hammock to improve thermal insulation from below.
- **Sleeping bag liner** – An extra layer of insulation inside your sleeping bag or quilt that really boosts its warmth in winter.

Comforter M400 measures **210 × 120 cm** and is designed for people **up to 185 cm** tall. You can also get this blanket in a larger size – [Comforter L500](/p/cumulus-comforter-l500).

[Video](https://www.youtube.com/watch?v=QrRk3PsHq50)

## Materials and Construction

The manufacturer went with the proven **Toray® Airtastic 19 g/m²** (7D ripstop nylon) fabric, which perfectly combines low weight, durability, breathability, and packability. Plus, the fabric is treated with a **permanent DWR water-repellent finish**, which reliably withstands light air moisture condensation and a few drops of water.

The thermal insulation is taken care of by **400 grams of goose down with a fill power of 850 cuin** in a ratio of 95/5 (down/small feathers). The down is ethically sourced, coming from Poland. The total weight of the blanket is **560 grams**.

The blanket has a **rectangular** **shape** and an **H-chamber construction** with continuous chambers that evenly distribute the down. In quilt mode, you can open the blanket in the foot area to vent it. Thanks to the drawstring at the ends, the loops on the sides, and the elastic cord, you can easily attach it to your sleeping pad.

## Accessories

- **Transport stuff sack** – The packed blanket has a cylindrical shape in the sack with a volume of 5,7 liters and dimensions of 25 × 17 cm (height × diameter).
- **Storage bag** – Lets you store the blanket without long-term compression of the down, which prolongs its lifespan and keeps its loft.
- **Attachment system to the sleeping pad** – 8 meters of elastic cord with plastic sliders, which you can cut to your desired length as needed.

The original stuff sack can't be compressed further and isn't waterproof, so it's a good idea to get a bag that solves both issues. An ideal choice is [Sea To Summit eVac Compression Dry Bag UL](/p/sea-to-summit-evac-compression-dry-bag-ul) or a classic waterproof bag [Sea To Summit Ultra-Sil Dry Bag](/p/sea-to-summit-ultra-sil-dry-bag) (size 8 liters).

## Specs

- Color: Black / Grey
- Chamber design: H-shaped chambers
- Down-to-feather ratio: 95/5 (feather/down)
- Season: 3-season
- Comfort temperature: 4 °C
- Limit temperature: 0 °C
- Down weight: 400 g
- Fill power: 850 cuin
- Down type: Goose
- Hydrophobic down: No
- Insulation type: Down
- Material: Toray Airtastic DWR (19 g/m², 7D ripstop nylon)
- Packed dimensions: 25 × 17 cm
- Length: 210 cm
- Maximum user length: 185 cm
- Stuff sack volume: 5.7 l
- Width: 120 cm
- Weight: 560 g
- Woocommerce product id: 138777
- Brand: Cumulus

## Related

- [NEMO Switchback](/p/nemo-switchback.md)
- [Cumulus the Quilt 300](/p/cumulus-the-quilt-300.md)
- [Patizon G Quilt 350](/p/patizon-g-quilt-350.md)
- [EVA Foam Pad 3 mm](/p/eva-foam-pad-3-mm.md)
- [Enlightened Equipment Enigma Quilt 40°F (5°C)](/p/enlightened-equipment-enigma-quilt-40f-5c.md)
- [Gramino Ultralight Sit Pad](/p/gramino-ultralight-sit-pad.md)
- [Tyvek 150x250 cm (for 2 people)](/p/tyvek-groundsheet-250-x-150-cm.md)
- [Cumulus the Quilt 450](/p/cumulus-the-quilt-450.md)

## Shipping and returns

- [Shipping and payment](/shipping-payment)
- [Returns](/return-order)

## Images

- ![Cumulus Comforter M400](https://media.gramino.com/medusa/4718b8ad457796df0c00514624054acc-01KWHVSA5PB59KHPK72GPDXE67.webp)
- ![Cumulus Comforter M400](https://media.gramino.com/medusa/4242953b7db76f8fc60af9ce72be071d-01KWHVSA60SSYTJZCQ7R6QWKMJ.webp)
- ![Cumulus Comforter M400](https://media.gramino.com/medusa/784a52f8428c1e6ad59a0584c2147bec-01KWHVSA8WC72FQBDJKXB6Q133.webp)
- ![Cumulus Comforter M400](https://media.gramino.com/medusa/bad7642fe7790f037cc74e790410d4d2-01KWHVSA8ZWMQ65SQFZCAYGH8C.webp)
- ![Cumulus Comforter M400](https://media.gramino.com/medusa/9fec0ccef31bfdaa42b92af36aadc5c8-01KWHVSAAMB3E2EG72BJ3DF5FZ.webp)
- ![Cumulus Comforter M400](https://media.gramino.com/medusa/8c4d2555e11dbbd246ed7b943d2ffff0-01KWHVSAB505G8WW10NZV2V3ZK.webp)
- ![Cumulus Comforter M400](https://media.gramino.com/medusa/03191ede4a5d3646e9d28055c5a578fc-01KWHVSAC3NJM5T6ZP7J8E7V65.webp)

## Identifiers

- SKU: CUCO-M400
- Handle: cumulus-comforter-m400
- Brand: Cumulus

This product is also available as [HTML](/p/cumulus-comforter-m400).

Category: [Quilts](/c/sleep/quilts.md) · [Sitemap](/sitemap.md)

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