The cover itself is made entirely out of synthetic materials which has implications for quality of sleep. I love the idea but the cover portion needs to be natural fibers IMHO.
It's mainly the thermal component, which synthetic fibers aren't very good at. As far as studies go there are many on the effects of thermal regulation on sleeping, which synthetic fibres are very poor at. Wool in particular vastly increases sleep quality for these reasons and is used in the medical industry.
