... Memory Foam Bed Mattress,memory foam mattress,bed mattress,sponge mattress,bed pad KEYWORDS: Memory Foam Bed Mattress,memory foam mattress,bed mattress,sponge mattress,bed padET-879015C ... /3 of our life time on the bed.this memory mattress show that: when the body is supine,the weight will ... distribute 40% on hips,15% on the back,10% on the head,10%on the feet and 25 ...