Instruct: Classify Amazon reviews into positive or negative sentiment
Query: mattress cover

Expandable Cover With This Soft Sleeper 5.5 Queen 2 Inch 100% Visco Elastic Memory Foam Mattress Pad Bed Topper OverlayI thought that the mattress cover that came with this would just zip onto the pad itself. However, it came with a total cover that covers the pad and the mattress (even the thick ones). Also discovered a bonus pillow included. SURPRISEVery comfortable and just what I wanted and it also conducts some body warmth.