This is the mattress I was considering getting anyway, and its now $200 to $400 off depending on what you get. 

I still have not seen a good review of it however; does anyone who has used one want to comment?

Just made the purchase.

Be sure to post a review when you can. Goodluck and hope it works out for you

edwardv wrote:

No way to go wrong with Costco, you can take it back if it doesn't work for you! Can't wait to hear about it.

I am starting to wonder how long Costco will stay in the mattress business.  They must lose money on everyone that is returned.  The shipping costs are lost for sure, and that can't be cheap.  Not sure if they can resell the returned ones either.  Maybe they make the manufacturer eat most of the loss.