My husband and I have slept on a king set for almost two years. We keep thinking the sagging will stabilize and it hasn't.
It's getting worse. It's probably over the 1 1/2" limit. I read many complaints on this website over a year ago. There are more now.
Always about sagging. I tell everyone I can about Serta's poor quality. Neither I nor they will ever purchase a Serta product. After all the problems you'd think Serta would want to clear their name.
Other 'review' webpages have glowing reports about the product.
Those people must have sent in comments after the first night. Just wait a couple of weeks!
Monetary Loss: $1300.