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The Serta Perfect Sleeper Oasis Sleep is a 12-inch queen innerspring mattress with a tight top and an extra-firm feel. Its 3-zoned coil system is meant to give more support under the middle of the body, and a layer of Cool Twist gel memory foam contours while aiming to limit heat buildup. It suits back and stomach sleepers and heavier people who want a flat, rigid surface rather than a plush one. Against softer hybrid and foam rivals it trades cushioning for support and a bouncier, more traditional feel.
In stockSold by Serta Simmons Bedding LLCReturns: Sold by a Walmart Marketplace seller; returns go to the seller under the seller's returns policy.
Owners rate it highly and most praise the firm support and the cool sleep it allows. Complaints center on the stiffness, which some find too hard, and on modest edge support.
The Serta Perfect Sleeper Oasis Sleep is a 12-inch queen innerspring mattress with an extra firm feel. It has a tight top and is sold as a mattress only.
It uses a 3-zoned coil design that provides pressure relief and support where the body needs it. The comfort layer is Cool Twist® Gel Memory Foam, which has cooling gel swirled into premium memory foam.
The memory foam contours to the body. It is breathable, which helps airflow and heat dissipation to keep the sleeper cool.
