The new Serta Sheer Slumber mattress delivers quality, convenient comfort to your front door in our smallest carton ever. We’ve combined cooling Serta Gel Memory Foam with our durable Serta Foam Core for a cool, supportive mattress that keeps you in dream-land all night long.
Serta Gel Memory Foam
This unique gel memory foam contours to the body for cradling comfort and allows airflow to keep you cool and comfortable throughout the night
Serta Foam Core
Our new and improved Serta Foam Core provides durable support for any sleep position. With consistent support from edge to edge, you'll be comfortably supported all night long.
Sheer Slumber 8” Medium Firm Gel Memory Foam Mattress-in-a-box
Memory foam, Gel
Medium to firm
Maximum Weight Capacity
Certifications & Listings
Manufacturer's Warranty - Parts
Manufacturer's Warranty - Labor
Customer reviews from Serta
User rating, 4.8 out of 5 stars with 17 reviews on Serta.
A:AnswerHi there! Thank you for your inquiry. The Serta Sheer Slumber 8” Medium Firm Gel Memory Foam Mattress-in-a-box Model:500776578-1010 SKU:6475011 is a Twin size 38"W X 74.5" L. If you have any other questions or would like to speak with our team directly, please do not hesitate to contact us at 1-888-557-3782 Monday to Friday, 9am-5pm (ET). Thank you.