Hotel Comfort Bolster Pillow Ultra Soft Bamboo Cover Hypoallergenic Memory Foam 18 x 8 inches Bolster Shape Ultra Soft 50% Polyester and 50% Bamboo (Viscose Rayon) Hypoallergenic cover. Dust-mite resistant High Quality 100% New Shredded Memory Foam Spot Clean Only. Use a mild detergent. Air Dry. Do NOT machine wash 30 Day "No Hassle" Return Policy: We are so sure you'll love Hotel Comfort Ultra Comfort Memory Foam Bolster Pillow that if - For Any Reason - you aren't completely satisfied - simply return your pillow within the first 30 days for a FULL refund. No questions asked! Guaranteed!