Who knows the height of the hotel guest room or hotel bed?

Who knows the height of the hotel guest room or hotel bed?

Bed is generally 25 centimeters high, there are many also according to their own custom, mattress is generally 20 centimeters high

Now 25 centimeters also more, thin 8 centimeters, 10 centimeters all have. I also occasionally listen to Xi'an Mulan home supplies people listen to, you study Kazakhstan!