After unpacking the usual unpleasant odor we noticed, have the ceilings such nunmal. He was not intense, but available. Ventilate 2 days and the smell was gone.
The ceiling is very soft and therefore can sometimes be used without reference.
The buttons do not interfere with this, however, they open sporadically if at night too much kicking. For me, not a problem because we use the blanket rule with coating and remain the buttons then together.
In winter we use the knotted together ceiling, in the fall and spring, the thickness and in the summer the thin blanket. This combination is excellent. In winter you have it warm and cool in summer.
Unlike other blankets we hardly sweat with this night also.
For me, the best blanket I have ever had and twice by the super price!