- It is very convenient to sleep on your side (I took a height of 16, in fact, on my side can be compared with a 14 cm roller in orthopedic pillows)
- After about 3 days, it began to wrinkle up to 5 cm, took a height of 16 cm. The photo shows that on the right after sleep it is much lower, it still does not restore height if it is whipped