Hi sweetsapphire,
I had a very comfortable mattress for almost fifteen years that only cost $250 and I gave it away willy nilly, thinking I would just sail into a mattress store and buy another one. Since then, I have actually considered stealing my old one back. I went to almost every mattress store in my area and laid down on every "soft" bed they had for sale. I recognize that I probably prefer a mattress much softer than most people so, at first, I was undaunted. But, after I don't know how many mattresses, I started to get frustrated. And, needless to say, these mattresses cost a great deal more than $250!!
Many years ago I owned a mattress that was a single layer of HR polyfoam that I used for a number of years that my memories say was among the most comfortable I ever had. It also cost me only a few hundred if memory serves me right and I got rid of it in a move thinking that I would easily replace it. Little did I know at the time that it wasn't as easy as I thought ... especially because I didn't really know exactly what I was sleeping on or know enough about mattresses or foam to really know what to look for.
I found that approximately 50% of the Restonic reviews were glowing and the other 50% were extremely angry because the mattress developed a sink hole and the company would not honor the warranty.
This is fairly typical because Restonic makes many different mattresses ... some of which use great quality materials and some which don't. They are also a licensee group (like Englander, Therapedic, Comfort solutions and others) and the licensee factories don't always agree about what they should use in their mattresses and can make them in different ways in the areas of the country they service. It's always the materials that determines how well a mattress performs over time and it's durability not so much the manufacturer that puts the materials into a cover.
My hesitation is regarding two points that really don't have anything to do with the actual mattress. I have an antique bed that most closely fits a full size mattress but it has one of the old spring box springs, as a regular one won't fit. Will the Ultimate Dream work with that or will it be too high? Or, worse, will the springs damage the mattress?
I don't know if it will be too high for you because only you can decide that. If you add the height of the Ultimate Dreams you are considering to the height from the top of the box spring to the floor you will know the height or your sleeping system with your new mattress. Alternatively you could measure your current mattress and then compare it to the Ultimate Dreams to know how much higher it would be (assuming it's thicker than your old mattress).
If the box spring is still in great condition and has an even surface with no sags or soft spots (which you can test along the surface with your knee) then they would be fine although the mattress will feel different on a box spring that has actual springs than it will on a foundation that has a firm solid non flexing surface. Typically a latex hybrid, all latex mattress, or a memory foam mattress is designed to be used on a non flexing foundation but a box spring is also used sometimes as well (the mattresses sold at Original mattress Factory are all sold with an "active" box spring for example). It's not 'bad" ... just different.
If you need a different box spring or foundation then a local manufacturer (such as
here
or another
one here
for example) may be able to build you a custom sized foundation or box spring to fit your bed.
Also, I somehow inherited snake blood so, currently, I sleep with a heated mattress cover, an electric blanket and many quilts topped with a comforter. Will I be able to use the mattress cover with the latex mattress? From what I've read, the latex mattress will allow me to eliminate some of the quilts but I can't imagine living without my electric linen in these North East winters.
Latex is not heat sensitive like memory foam so you will be able to use anything you are using on your current mattress. It is also more breathable than other types of foam and can regulate temperature better.
Phoenix