In March 2009 my wife and I took delivery of a 5/0 Sleep to Live 700 series mattress by Kingsdown, (Mebane NC). After attempting to become use to sleep on the mattress for 9 months, I was waking up in such pain I contacted the company about the mattress being to firm.It was literally cutting off my blood flow to various parts of my body! After much consultation the company agreed to replace the mattress under warranty. In December we took delivery of a new mattress hoping that it would sleep more comfortable. Not!Even though the... read full review »