Sealy PosturePedic Ratings. The Sealy Posturepedic mattress will vary by retailer based on stock availability and delivery schedules, averaging between 3 to 10 days. Moreover, there are different types of mattresses … The few dissatisfied customers complain that the mattress is too firm or that the foam breaks down after just six months. Sealy … The Cocoon by Sealy Chill is an all-foam mattress from Sealy. Enjoy low warehouse prices on name-brand Mattresses products. It comes in three distinct styles, Essentials, Performance, and Premium. Most customers rave about all aspects of the mattress. The Conform mattress is Sealy’s all-foam mattress. All-foam mattresses tend to trap heat and can feel uncomfortably warm, so the Cocoon Chill has a special cover made with a … Find a great collection of Sealy Mattresses at Costco. The model used in this review – the Posturepedic Optimum Guilford mattress … Each mattress uses the same base foam layers, but has different materials on features for each different level. BBB Rating: A+; Amazon Reviews: Sealy mattress reviews for the Kelburn hybrid mattress on Amazon average a 4.5 out of 5 stars.