Better when alone

Hi.i have a queen luxury soft puffy.i got new from a personal mattress dealer.not store,so no warranty.i thought was going to be big enough.i did read the reviews that it was good bed.Opon getting it,it did seem big enough.the first few nights wasn't to bad.i could feel a little indent from my partner but not much.and could feel it flare back up when he got up.and like all new beds.i couldn't tell yet for about a week or two how it really was.one week in and I could really start to feel more of my partner making it sagg in.and we both are 160lbs+.no real pain relief.after a week when on it all alone and can be more center of bed.it was so nice . comfortable soft.still no coolness like it said it did.but depending on how you slept.side back stomach.is how much pain or not you woke in.no real support after a few weeks on pain.I woke up in pain more then not.and I have had my bed for 4 months now.I hate my decision in getting a queen we need a bigger one.im sleeping on a hill you can say, do to the bad sagging in my husband causing.that actually will cause my side to feel a little harder.i like the bed but only if it's just my self.or is bigger so that space is there from the other person.and if it wasn't so soft.if it had better support.others said it had,it's lacking,I don't think it's got.and I do not believe it will work on any bed fram.i have the mattress on the floor.i can tell you it definitely wouldn't work on an adjustable,or anything that doesn't support the whole bottom.needs to be on platform that is solid.and the cover should be a little thicker for protection of material inside,and more breathable.if possible.it doesn't get you hot niether just doesn't actually help with keeping you cool.and we can feel each other move.we ain't big don't get me wrong.my husband ain't light niether.but I have a twin Sealy posturepedic gel infused.we slept on together a lot more comfortable and better than this.im trying to look for another.cant afford factory price though.