Comfort does not have any limit. You may get comfort as much as you want. The never-ending demand of comfort pushes science to find new ways and eventually a mint fresh comfort commodity is produced. This is very true to mattress industry too. Mattress invention has come a long way. Today when you look around, you can find hundreds of mattresses in all shapes and sizes. Some of them are old fashioned and some innovative.

Think of a situation when your mattress has become old due to excess usage. The top level of your mattress is not that much soft and you feel uncomfortable sleeping on it. Now what would you do? Certainly you won’t discard it, as the mattress still can serve for some more years. The solution is a top mattress.
You buy a super-soft top mattress and fix it over your existing mattress. Problem is solved; your good old mattress is again like a new mattress.

Top mattresses are laid on top of the mattress to prolong the usage of the mattress life. If a person does not have money to buy a new mattress, to extend the life of the existing mattress top mattresses are used.