maleficent

Mattresses are good for about 10 years -- 15 tops - once they are gone, and they start to bother your back -- it's time to go mattress shopping.

If it's not a pillowtop mattress, you could try flipping the mattress over and try sleeping on the opposite side (when you buy a new mattress, flipping the mattress prolongs the life of it)

You can get a backboard, like WarWagon suggests, but that's really only a short term thing.

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