# SUNMER Double Sleeping Bag, 300GSM, 2 Person

The SUNMER double sleeping bag is a rectangular two-person design with a claimed 300GSM filling and a stated option to separate it into two single bags. Its dimensions suit buyers prioritising shared space, but the listing gives conflicting weight and temperature information, so check those details before relying on it for cold-weather trips.

- [Original product page](https://bargainpostbox.co.uk/product/sunmer-double-sleeping-bag-300gsm)
- [View offer](https://bargainpostbox.co.uk/visit/sunmer-double-sleeping-bag-300gsm)
- Market: UK
- Language: en-GB
- Currency: GBP
- Brand: SUNMER
- Model: SNM-DOUBLE-SLEEPBAG-103376
- Category: Sports & Outdoors > Camping & Hiking
- Price: 33.99 GBP
- Previous price: 39.99 GBP
- Discount: 15%
- Price checked: 2026-11-12T19:19:54.869Z
- Rating: 4.4 / 5
- Reviews: 622

Prices and deal status are the latest recorded data, not a guarantee of availability. Confirm the price and availability with the store.

## At a glance

- Listing says the double bag can convert into two single sleeping bags.
- The stated dimensions are 220cm x 150cm, with a rectangular shape.
- Manufacturer materials list polyester for the outer material and filling.
- The listing describes the shell as water-resistant, not a guarantee of waterproof performance.

## Pros

- Two-person layout offers shared sleeping space, with a claimed option to separate into two singles.
- The carry bag is listed as an included component.
- Customer feedback reports comfort and warmth, although this is not a verified temperature-performance result.

## Specifications

### Identity
- Brand: SUNMER
- Model: SNM-DOUBLE-SLEEPBAG-103376
### Dimensions and installation
- Form factor: Rectangular
- Listed dimensions: 2.2L x 1.5W metres
- Maximum height recommendation: 220 Centimetres
- Size: Double
- Occupancy: 2 Person
- Weight listed: 2.5 Kilograms
### Materials and construction
- Material listed: Polyester
- Filling claim: Warm 300GSM Hollow-Fibre Filling
- Closure type: Zipper
- Colour: Double - Navy
### Use and claims
- Season claim: All Seasons
- Temperature rating: Extreme
- Age range: Adult
- Sport: Camping and Hiking
- Special features: Lightweight,Portable,Durable,Comfortable
- Country of origin: China
- Warranty field: No Manufacturer Warranty

## Before you buy

- Listing details are contradictory or inconsistent: weight is listed as 2.5 Kilograms in product details but 2.6kg in feature copy, dimensions appear as both 2.2L x 1.5W metres and 220cm x 150cm, and temperature guidance varies between 10°C to 0°C and 10°C to -5°C. The 300GSM filling and all-seasons wording do not establish a standardised temperature rating. Check the selected listing and intended conditions before relying on cold-weather protection. Customer feedback also reports mixed views on usable size and zipper operation, with some finding it roomy and others disputing the king-size description, and reports that the bag feels thin.

## In the box

- Carry bag (Included)

## A good fit for

- Couples or two campers wanting one shared rectangular sleeping bag.
- Buyers who may value separating the bag into two singles, as claimed in the listing.
- Caravan or campsite use where the listed weight is less critical than a shared sleeping space.

## Less suited to

- Buyers needing a dependable, standardised cold-weather temperature rating from the supplied listing.
- Hikers who need a confirmed pack weight, since the listing gives two different weights.
- Anyone needing assured king-size room or consistently reliable zipper operation based on customer feedback.

## Customer feedback

Customer feedback describes the bag as comfortable and warm, and reports positive impressions of camping and caravanning use. Other feedback says it can feel thin, while views differ on whether the available space merits the king-size description and on whether the zip works smoothly. These comments matter for a two-person bag intended for outdoor use, but they do not establish a reliable cold-weather rating or settle the listing's size and weight discrepancies.
- Positive themes: Customers report comfort and warmth.
- Positive themes: Customers describe it as suitable for camping and caravanning.
- Negative themes: Some customer feedback describes the bag as quite thin.
- Mixed feedback: Feedback differs on roominess, with some finding it roomy and others saying it is not king size.
- Mixed feedback: Zipper feedback is mixed, including reports of snagging on first use.

## Frequently asked questions

### Can this sleeping bag be used as two singles?
The listing claims it can convert into two single sleeping bags. Confirm the configuration and zips on the selected listing.
### What temperatures is it intended for?
The listing gives inconsistent guidance, ranging from 10°C to 0°C in one description and 10°C to -5°C elsewhere. Treat those figures as unconfirmed rather than a dependable rating.
### What are the dimensions and weight?
Dimensions are given as 220cm x 150cm in feature copy, while the product details express them as 2.2L x 1.5W metres. Weight is listed as 2.5 Kilograms in details and 2.6kg in the feature text, so verify before purchase.
### Is the outer shell waterproof?
The listing describes it as water-resistant in its detailed copy, though the title calls it waterproof. Water resistance should not be taken as confirmed waterproof protection.

## Alternative options

- [KingCamp Double Sleeping Bag with 2 Pillows Cotton Flannel 4 Season \| Sleeping Bags 2 Person for Adults Kids Winter Warm Lightweight Extra-Large for Camping Hiking Indoor Outdoor](https://bargainpostbox.co.uk/visit/sunmer-double-sleeping-bag-300gsm)
- [MEREZA Double Sleeping Bag for Adults Mens with Pillow, XL Queen Size Two Person Sleeping Bag for All Season Camping Hiking Backpacking 2 Person Sleeping Bags for Cold Weather & Warm](https://bargainpostbox.co.uk/visit/sunmer-double-sleeping-bag-300gsm)
- [Maraiss King Size Sleeping Bags for Adults 2 Person Sleeping Bag with Pillow 4 Season Waterproof Camping Sleeping Bag for Hiking Backpacking & Outdoor Use](https://bargainpostbox.co.uk/visit/sunmer-double-sleeping-bag-300gsm)
- [FORINBUY Double Sleeping Bag for Adults, XL Queen Size 2 Person \| Cotton Flannel Lining,Waterproof Warm,3 Season Comfort,Extra-Large for Couples Family Camping Caravan Guest Bed](https://bargainpostbox.co.uk/visit/sunmer-double-sleeping-bag-300gsm)
- [azark Premium Sleeping Bag, 350GSM, Lightweight and Waterproof, 4 Seasons of Camping, Hiking and Outdoors, Sleeping bag for Adults & Kids](https://bargainpostbox.co.uk/visit/azark-75496-double-sleeping-bag)
- [FORINBUY Winter 0°C Double Sleeping Bag for Adults, Queen Size 2 Person Sleeping Bag with 100% Cotton Flannel Lining, Waterproof And Warm for Camping, Truck,Tent or camper van in Cold Weather](https://bargainpostbox.co.uk/visit/sunmer-double-sleeping-bag-300gsm)
- [COSTWAY Double Sleeping Bag, Extra Large - 220 x 150 cm - Converts into 2 Singles, Waterproof Sleeping Bag with Free Pillows and Carrying Bag for Camping, Hiking](https://bargainpostbox.co.uk/visit/sunmer-double-sleeping-bag-300gsm)
- [MEREZA Flannel Double Sleeping Bag for Adults Cold Weather, XL Queen Size Sleeping Bag for All Season 2 Person Big and Tall Sleeping Bags for Camping 0 Degree with Pillow](https://bargainpostbox.co.uk/visit/sunmer-double-sleeping-bag-300gsm)
- [SAIL Double Sleeping Bag with 2 Pillows Extra Large 3-4 Season Lightweight,Waterproof Indoor & Outdoor Use for Adults for Hiking, Backpacking and Camping](https://bargainpostbox.co.uk/visit/sunmer-double-sleeping-bag-300gsm)
- [Peirhw XL Sleeping Bags for Adults - Extra Wide Rectangular 3 Season Sleeping Bag with Pillow and Carrying Bag, 300gsm Cotton Waterproof Camping Sleeping Bag for Indoor Outoor Use](https://bargainpostbox.co.uk/visit/sunmer-double-sleeping-bag-300gsm)
- [azark Premium Sleeping Bag, 350GSM, Lightweight and Waterproof, 4 Seasons of Camping, Hiking and Outdoors, Sleeping bag for Adults & Kids](https://bargainpostbox.co.uk/visit/sunmer-double-sleeping-bag-300gsm)
- [MEREZA Double Sleeping Bag for Adults Mens with Pillow, XL Queen Size Two Person Sleeping Bag for All Season Camping Hiking Backpacking 2 Person Sleeping Bags for Cold Weather & Warm](https://bargainpostbox.co.uk/visit/sunmer-double-sleeping-bag-300gsm)

## Add-ons

- [Bestway Double Flocked Airbed for Camping \| Inflatable Camping Air Mattress, Portable Inflatable Double Flocked Bed for 2 People, Fast Inflation](https://bargainpostbox.co.uk/visit/sunmer-double-sleeping-bag-300gsm)

## Images

![SUNMER Double Sleeping Bag, 300GSM, 2 Person — 1](https://bargainpostbox.co.uk/i/7ycmNfo0Ffdn8Lp0ihqNpaCxF0Hg3i3rRs0dNXQ3A_v9A4Dlc9uEl-2oltZU8Caf_vHzH1mACsTUiYw10oFXR43fWHJ-wxS_aK1YV0EFPiyAhjCHjaOX760l.jpg)

![SUNMER Double Sleeping Bag, 300GSM, 2 Person — 2](https://bargainpostbox.co.uk/i/PrZSUIoftiRXo25WWKEu85lhe7NTTtcnLGbqSSVrxskvqiV54jOtJbCad8tkrLVlDMu5IQJZjR90MKWGc58mgjgcNuTstXoCZE9HdS-xLMZ6LBgslZkgLfFQ.jpg)

![SUNMER Double Sleeping Bag, 300GSM, 2 Person — 3](https://bargainpostbox.co.uk/i/8R4WzMtjCNwVrtauNfDzk8rVjn8N2UC7uiWwxo9p8QnVIaX-sNxQgGpKRvjZMz-3IkotU0li29OSIwA6OeCsOIO_OFgZ8MuHp3T_b8gAF21Dj_wxY8yvuSJc.jpg)

![SUNMER Double Sleeping Bag, 300GSM, 2 Person — 4](https://bargainpostbox.co.uk/i/INgV8Vm826lH3ePSuv95W9sjod-flL0nr1hgabhqO07EXl9t0D-ZnIjUemwaK6Qzegu-S_4mwY0Vtj20X1squjOUGxRj6GIQy0gntpAGw7KIjmHYg5owwxZZ.jpg)

![SUNMER Double Sleeping Bag, 300GSM, 2 Person — 5](https://bargainpostbox.co.uk/i/NRbkA7C6c8jINgeq9o3szY_PLchSjecUK7ZNBlNVH8JCBiOv2c-Wp4xBd5jMJEqUiShVZLQ_K0tRxxtQwRAbIsVca8UkIJrkuJp8uicKFiTpB-tI-7rv0lR_.jpg)

![SUNMER Double Sleeping Bag, 300GSM, 2 Person — 6](https://bargainpostbox.co.uk/i/ls8YJtntxP-82-ZnnnYg3LLOaxtg7rKmbXWo911_unHBEhVsCNYwZHONtfpUAkrYmZtgxzQhVEi5obXXWzIpMkzCuHvZS6jVVVxGXwuNZuLiDkSSapLqqo45.jpg)

![SUNMER Double Sleeping Bag, 300GSM, 2 Person — 7](https://bargainpostbox.co.uk/i/mCsbkhLMlNx_jb_5ybC-dxCvsToqKs_ZH2xcGnLvgS75qGC2jrHWWFAJKB2He5ZGER9YsVHthIQbSSmFKu_M_wtHtD3f2M0iDCWqNtKa2J8nbJwsDRUgfdo_.jpg)