I’ve had a Hyde and sleep memory foam mattress since 2017, when it had its own website (I believe it stopped that and moved back under the dreams umbrella, and also stopped selling pure memory foam mattresses for a while, due to the terrible feedback). It was initially comfortable but soon developed deep dips where I was sleeping, despite being turned regularly. It’s also incredibly hot. I continued with it as I do find memory foam the only sort of mattress that alleviates my lower back pain, but after less than 5 years it’s dipped so badly the back pain is back. And now I’ve got to a certain age and am sleeping hotter it’s unbearable. Am about to throw it out and will never buy from a Dreams brand again.