As you begin shopping, you will want to try every mattress for yourself. Don't be intimidated -- that's what the display models are there for, bed bug mattress cover uk and it is critical that you personally feel comfortable on the mattress you buy. As a rule, very firm or hard mattresses can put pressure on joints and cause morning "stiffness," but at the same time, you also don't want an overly soft mattress. Soft mattresses lack the proper support, requiring your muscles to compensate in supporting the weight of your body. Of course, this can lead to muscle soreness in the morning and a poor night's sleep over all.