Amerisleep AS3 California King Size Mattress in Excellent Condition! It's a high-end mattress with a lot of positive feedback. Its dimensions are 72 inches broad by 84 inches long by 12 inches thick. This mattress is rated as medium firm. It is also a cool sleeping mattress with excellent support. It was only used for two weeks before being returned. It costs $1,699 + tax at retail. I'm only asking $650 and will deliver it free of charge. If necessary, I can also remove your old mattress.