The “2000 design option” has no foam on the top, but instead a quilted cover.  There are stiffer foam side rails and all the foam can be removed in zippered sections, cleaned and re-inserted.  If the mattress is in need of repair, the customer can remove their foam, keep it, and re-insert it when they receive the mattress back from manufacturer.  The 777 does not have these features.  The 777 needs to have the foam cut away and the company re-foam it when it is sent for repair work.  If the mattress is under warranty, the Manufacturer re-foams for no charge. But if the mattress is out of warranty, the customer will face a charge of $300 for re-foam.  So, there is a potential long-term savings with the Rem-2000  or "2000 design option" when an older, past warranty, mattress is sent for repair. 

Product	Shipping Weight	Shipping Dimensions
XL37	45 lbs	40 x 19 x 22
XL42	50 lbs	44 x 19 x 22
XL48	53 lbs	50 x 19 x 22
XL54	56 lbs	56 x 19 x 22
XL60	61 lbs	60 x 19 x 22