mattress warranty covers only the following items considering normal usage:-
Wear and tear of mattress at the time of delivery and-
Undulations in the mattress surface-
Shrinkage of mattress thickness by more than 20%
Not Covered In Warranty
mattress warranty does NOT cover items not expressly listed in the above question, such as, but not limited to:-
Sagging in the mattress that measures less than 20% of its original thickness- Comfort preference-
Damage of the mattress due to misuse or abuse- Mattress fabric- Fabric Stains, soiling, fluid penetration, tears or burns-
Damage caused by the use of an incorrect bed frame- Unauthorized service during the warranty period and- Normal body impression