Check out Individual Jamison Mattress Warranties in the Right hand Column under Mattress name.
BODY IMPRESSION is a Key Word when talking about Mattresses and Jamison Mattresses are among the top rated at eliminating Body Impressions.
Body Impression is an indentation in your Mattress where you can see where you slept that does not return after rising. First let me tell a little about Body Impressions in Mattresses. It is IMPOSSIBLE to eliminate ALL body impressions. A Mattress is a soft surface and we tend to sleep in the exact same spot night after night, so you are going to have some sag in that area. With that said, It should not be a deep trench.
Mattress Companies, including Jamison Mattress, has set a standard that has been consistent for several years now with a 1 1/2 inch allowable impression before it signals a significant problem. If you have called a company about sagging, they probably came out and laid a string across your mattress and measured the deepest spot to see what the sag was. If it was over an Inch and 1/2 then they could escalate it to the company as there could be sagging in springs or defective foam, etc. But, remember a few things these companies want to see to insure the mattress Warranty stays good. The Mattress must be free from stains, and the original law label must be intact to show manufacture date, and you need to keep your original paperwork. Put your paperwork under your Mattress so you always know where its at.
Body Impression and Mattress Technology advances have made the allowable Impression diminish to shallow depths. For instance, Jamison Mattresses in the TLC Collection are made of Latex and are now offering warranty coverage for body impressions of 3/4 of an inch! That is VERY minor sag, AND Jamison stepped out there with a 20 Year Non-Pro Rated Warranty which is a FULL warranty that does not diminish over time. A FULL 20 YEARS! That is strong in the bedding industry, but Jamison is confident with their product and realistically if your mattress sags 3/4 of an inch, are you really going to complain? Most Mattress owners would be thrilled with 3/4 of an inch sag in their mattress.
Mattresses are being made better with new technology advances and new materials. Tallalay Latex, Memory Foam, Omalon Foam, just to name a few that Jamison Mattress uses and don't forget they have some of the best Inner Spring mattresses on the market in the Arbor Collection and with the Aphrodite Firm flippable and Aphrodite Plush flippable mattresses. If you are looking at a new Mattress, take a moment and check what Jamison has to offer.