我在overstock买的,很硬,不过有些热,冬天都不需要盖很厚的被子。
Comfort Dreams Pillow Top 14-inch King-size Memory Foam Mattress,
king size Item#: 10828458
用这个link拿那个$30 off $600 over + free shipping
http://www.overstock.com/coupons?cid=52085&kid=2000000520&kenshoo_id_=572efdd5-6777-bc89-9aeb-00003dfd3dab&fp=f