I had the BEST sleep I've had in so long… I only wish I had the mattress ... years or sooner. Costco is the biggest of the membership-based warehouse chains, with twice the sales of its Sam's ...
Costco's Return Policy Was Put to the Test When a Couple Brought in a 5-Year-Old Mattress: 'I Was So Nervous' They wheeled in a $500, five-year-old queen mattress with high hopes and no receipt ...