Hotel beds

What is it about hotel beds that make them so much more comfortable than our beds at home?  Is it because I don't have to change the sheets?  Is it all the extra pillows?  Is it because I pay money to stay here? 

I am in Tampa for a conference called the Leadership Educators Institute and staying at the Hyatt Place.  I have a beautiful room and the bed made it very difficult to get up for the conference sessions this morning.