Not really a reply, but building on my comment - I went super deep into the whole thing, cotton density, etc.. I tried John Ryan, it was just too high lol. I think Hypnos bang for high end buck is amazing. If you want something that molds around you I would go for natural latex, rather plastics. Cooler and natural. Though I am also sure vispring is epic, maybe one day…
I've got a Hypnos superking extra firm, no issues so far (only had it for about 8 months though). You're meant to turn them every so often. I don't know if I'd ever go back to any hybrid/memory foam type of mattress tbh, I haven't had good experience with them in the past. Could it be that your bed base isn't suitable for the type of mattress you've got if this keeps happening?
Hypnos has been pretty good for me, but then I like sleeping on a concrete rock according to others. I usually get their firm matresses and have been happy. I don’t think you can go too wrong with Hypnos, Harrison spinks, vi spring etc but the most important thing is it has to be right for you and other half if that’s a requirement. Sometimes half and half is the way to go as good sleep for you and bad sleep for your significant other other isn’t great and vice versa.
Jack Ryan have 60 days returns from when I last checked. Always ask in store what the returns policy is, I might even say try in store but buy online, matresses are made to order these days and if you buy it in the store you might have a hard time returning it, unless it’s in a 60 day return aswell. Also Jack Ryan have a lot of good articles on their site, which I found very informative when buying my current Hypnos.
ScratchingPork
