To know the importance of sleeping on a comfortable bed, you should sleep on a bad bed first, just like what I did. It cound not be called bed actually. A poor quality mattress which I slept on for over one month now stands up to make place for my new bed. A friend of mine warned me that I may hurt my back when sleeping on the former mattress. He was right. The day after he said those, I had a pain on my back, which forces me to buy a new bed immediately. Secondly, the bed makes the bedroom a bedroom. Have a good rest before hard working, that’s a prize for myself.