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Gear Review: Salewa – Diadem Warm

The Diadem series from the Italian company Salewa includes three sleeping bag models – Diadem Mild, Diadem, Warm and Diadem Extreme. The comfort temperature range of the sleeping bags ranges from 3°C for the Diadem Mild to -16°C for the Diadem Extreme.

General

The Salewa Diadem Warm is available in two different sizes – Responsive and Long. The Diadem Warm Responsive is suitable for a height of up to 185cm and the Diadem Warm Long up to a height of 195cm. In order to achieve a comfortable temperature of -2 ° C, Salewa decided on a 500g down filling with a mixed ratio of 90/10 duck down. In addition, the down filling has a minimum fill power of 750cuin.

Size  
     Responsive Height up to 185cm
     Long Height up to 195cm
Zipper Left or right
Weight without bag 1092g
Weight with bag 1163g
Packing Size 28 x 22 x 20cm
Price ca. 400 EUR

 

Due to the good down mix ratio and the high minimum filling power, the Diadem Warm can be used up to an extreme temperature of -26 ° C. The Salewa Diadem Warm weighs 1092g.

Special Details

Salewa achieves the high thermal output of the Diadem Warm in addition to the high-quality down filling with a special chamber system. Furthermore, Salewa has provided the sleeping bag with an insulated cover strip and a pre-formed thermal hood, which should prevent warm air from escaping from the sleeping bag through movement. Another detail of the Diadem Warm is the inside pocket, which allows you to keep your valuables close to you even at night.

Review

In order to test the thermal output of the Salewa Diadem Warm, we warmed up the sleeping bag and used a thermal imaging camera to see how much heat the sleeping bag emits and where cold bridges occur. First, we spread out the sleeping bag so that the down can be puffed up properly and maximum isolation can be achieved. To warm up the sleeping bag, we placed three hot water bottles, which we filled with hot water, in the body area of the sleeping bag, as well as a hot water bottle in the head area. We put two glasses between the hot water bottles so that the warm air can be distributed throughout the sleeping bag.

After 15 minutes we took three pictures with the thermal imaging camera in order to see in which areas the Salewa Diadem Warm emits the most heat. The blue areas on the pictures mean that they have the lowest surface temperature and the further the color changes towards red, the higher the surface temperature at these points is. However, the images cannot be compared one-to-one, as the temperature range is redefined for each image. You can see this from the three temperature indications on the picture (red = highest temperature, green = lowest temperature, white = average temperature). The three small red areas that can be seen on the overall view are only in those areas where the sleeping bag is exposed to the greatest heat. Below the opening of the head, the red area is only in folds, where the heat can easily accumulate. You can see this very well on the close-up of the head area. The close-up of the head area also shows that the Salewa Diadem Warm has weaknesses in terms of insulation there. In the two close-ups it is also easy to see that the sleeping bag is very well insulated in the area of the zipper and that no additional heat escapes through it.

Conclusion

The Salewa Diadem Warm is right in the middle between the perfect touring sleeping bag for the winter and the winter sleeping bag, where weight and pack size are irrelevant. On the one hand, it is one of the lighter sleeping bags but on the other hand, the packing size is more in the larger area. The same picture emerges with the thermal insulation and the price, here too the Diadem Warm is right in the middle if you compare it with other sleeping bags.  

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