The mattress is not the best . I only had the mattress for 16 months. The mattress lost support when the side bubbled out and collapsed. I purchased it from Wayfair along with a 10 year warranty . Wayfair told me they only cover 1 year and Allstate Co. covers the the 10 years. I was told by Allstate Co. that it’s a mfg issue and it’s not covered. However, the warranty contract clearly reads mattress material under the covered items section. Both companies refused to help. Serta refused to help because it wasn’t a direct purchase from Serta. 
Do not purchase this item from Wayfair, or the warranty, that evidently isn’t worth the paper they printed it on.