Finding a new mattress can be very confusing. Salespeople show details of the mattresses, telling you to lie down, get up, and sit at the end to show all the features. At that time, you tried everything but you have forgotten how the first one was.
There are many sizes to choose from: King, Queen, Full and Long. Then there is the mattress material actually made of waterbed for rolls and foam. You can purchase good quality memory foam mattress online.
Of all the mattresses available, memory foam seems to be the most comfortable mattress, supporting all parts of the body. This is also guaranteed to last longer than conventional mattresses without loosening or deteriorating.
NASA developed memory foam for astronauts to relieve the enormous g-force during the rocket launch, travel and re-enter the Earth's atmosphere. They make materials that can breathe and high density that is sensitive to body temperature and pressure.
The foam that is developed is able to distribute weight over the entire foam. This feature is great for different body sizes. Memory foam will really adjust to body size or whatever weight is on it, without leaving the loose or uncomfortable parts.
This is very useful for guest bedrooms where different people will use the bed. If space is a consideration, even a twin memory foam mattress will provide comfort that is as large as a guest like the king or queen bed that he normally uses.