I bought a sleeping bag recently on Amazon and am very satisfied so far. Even with colder nights (about 10 degrees) keeps the sleeping bag warm. He is also quite large, so I loose purely passe with 1,80m and can still comfortably turn without the whole sleeping bag rotates along. Furthermore, the sleeping bag can be virtually open to the ceiling. The material is very soft and cuddly.
The only drawback so far is the Pack Size: The sleeping bag is in its packaging but significantly larger than many others (for this - as I said - the unpackaged state indeed a nice size) and thus for occasions when you can not take a lot of luggage, not just suitable.
I am very happy with my choice and can recommend everyone this sleeping bag!