View on LOZ Suggested Retail: $159.99. LARGE AND/OR HEAVY ITEM. BRING HELP TO LOAD.. Serta Perfect Sleeper Box Spring Foundation. Give your mattress total support with the Perfect Sleeper Box Spring. This highly efficient box spring provides consistent support across the bottom of the mattress with lasting durability. The unique construction of this foundation helps to isolate the impact of your sleep partner’s movements, so you can sleep undisturbed. This practical foundation is available in a variety of sizes so you can choose the one that best fits your mattress. Easy to assemble and high on functionality, the Perfect Sleeper Box Spring is the perfect addition to any bedroom. 7 DAY FULL REFUND GUARANTEE ON THIS ITEM IF ANY ISSUE IS FOUND THAT WAS NOT DESCRIBED/PICTURED. 7 DAY STORAGE IS ALSO AVAILABLE. SEE NOTES TO BIDDER, IN AUCTION DETAILS, AT THE TOP OF PAGE 1 FOR MORE INFO.