My old bed was a Beautyrest Black in a Queen and is still great but we wanted a King when we moved and my wife was annoyed at the thickness of that mattress so we ended up getting a SleepMaker King bed and putting the Queen in the guest room.
It was a little bit of an adjustment as it's a different style of bed but it's turned out really well. I quite like it now.
Also helps that I got the $5,000 mattress for $800 though. My staff discount is pretty good, I got a friend of mine a $14,000 mattress for $1,500 delivered.
Try the ones that offer a money back guarantee first.
If you like you like it. If not, get your money back and try another. Usually the companies just ask you to recycle the mattress.
I bought a Tuft and Needle 4 years ago. Still comfortable and no problems with being too hot or cold.
What gets me is the prices. From what I understand, it costs these companies like $50 to produce the foam blanks for these mattresses. Then they do some trimming and fancify the foam. So maybe at the most $150 for the cost of the product.
Depends where it's made. I can only speak for Australia.
You have labour and overhead for all the employees that pour the foam, cut the foam, glue the foam and pack the foam. Then the various costs associated with the cover, if it's made overseas or locally makes a big difference. Like $5-6 to $30-$40 or more.
Then also transport costs.
Keep in mind most places that sell these mattresses don't make the foam themselves. So we make the foam and glue it all together and normally fit the cover for them, also roll and pack in to a box for bed in the box products and then sell to that company that slaps their sticker on it because the layers are their "design" then markup the price 120%.
I can say that on average most foam is around the $4-$6 per kilogram range. So for example if the mattress has 30kg of foam in it you're looking at $150 at just the raw cost of foam without all the stuff I mentioned before.
There are some that cost us like $40 and sell for a couple of hundred in store though. Just depends on how difficult it is. Labour is the most expensive thing.
The biggest rip off is memory foam pillows. They cost $15 each to make and sell for over $100, some I have even seen as high as $300.
Some are good, but are ridiculously marked up.
Source: Me. I literally do costing for a foam/bedding company.