I purchased a bed from bensons for beds in 2017. Until now everything has been fine, but I have noticed that the mattress has started to sink on either side of the bed. When we purchased the bed/mattress we were told of instructions how to take care of the mattress, we followed the instructions and also bought protectors for the pillows and mattress to further protect the fabrics and make them last. My concern is now my partner is nearly 20 weeks pregnant and she is struggling to sleep as the mattress is very uncomfortable. I have had the mattress only since 2017, I would expect it not to deteriorate in such a short time. I have owned beds and mattresses in the past and they have been fine after many years of use. Considering this particular mattress and bed I purchased was fairly expensive I expect it to at least last more than a year