I had Which? for years and years, and eventually stopped subscribing about three years ago when their price went up so much I couldn't justify it anymore.
We bought a Simba mattress about 6 months ago, to help with joint pain, but it's started to hump within that time. There doesn't seem to be much point in asking for a replacement as I expect the same will happen. Luckily their warranty should cover a return.
I'd really like to see some independent, non-paid-for reviews for a mattress. Looking for a motion-isolated (e.g. not bouncy when one of us turns over) ideal for side/front sleepers. The maximum budget is about £1000. If anyone has a Which? subscription or a personal recommendation, I'd love to hear it.