As one of its daily deals, Amazon offers the eLuxurySupply Gel Memory Foam 10" Mattress in a variety of sizes as listed below with prices starting from $373.99 with free shipping. That's a savings of up to $203. Deal ends today. The sizes:

• Twin for $373.99 ($126 off)
• Twin XL for $385.99 ($129 off)
• Full for $460.99 ($154 off)
• Queen for $516.99 ($173 off)
• King for $591.99 ($198 off)
• California King for $606.99 ($203 off)