Memory foam matressToday only, as part of the Gold Box Deals of the Day, Amazon offers 50% - 70% off select Simmons Curv 3-inch Flat Gel Memory Foam Mattress Toppers. The King sized mattress topper goes for $200 currently at Overstock, but can be had for $135 in today's sale. That's $65 off and the lowest we've seen it at Amazon by $35.

Each mattress features 3-inch Gel Memory Foam that creates more airflow for a more comfortable sleeping temperature.

Here's the breakdown of each mattress by size and how much you can save: Read more of this post