Help me pick a Memory Foam Mattress

[marathon55]

So we are getting a new mattress after 11 years on our old one and have decided to try a memory foam one.  We want to spend <$1000 (or no more than that) and have narrowed down to three choices.  Let me know your thoughts or if you have any of these:

#1 (From Costco so no hassle return if we don't like it, we like that it has "gel" infused foam so I'm hoping its not too warm for DH.  Decent amount of positive reviews and I know people on here have been happy with NovaForm)

www.costco.com/Novaform%C2%AE-Serafina-Gel-Queen-Memory-Foam-Mattress.product.11678263.html

#2 (Also from Costco so easy return, it's the most expensive, limited reviews but they do mention heavy husband and my husband is 220lbs so sinking is a concern with memory foam, It has the a full 4 inches of memory foam, but the memory foam is located in the middle..limited reviews)

www.costco.com/Comfort-Revolution-Dream-Bliss-14%22-Luxury-Memory-Foam-Queen-Mattress.product.11737762.html

#3 (Ok..two here from Amazon.. not sure which one I would choose.  The pros are they are half the price of the one from Costco plus no sales tax and they seem to have good reviews.  Seems 'too' cheap to be quality??  Return would be a hassle with Amazon..not an issue with Costco)

www.amazon.com/LinenSpa-Cashmere-Ventilated-Triple-Layer-Viscoelastic/dp/B0063OQNYO/ref=sr_1_6?ie=UTF8&qid=1359034692&sr=8-6&keywords=lucid+mattress
www.amazon.com/LinenSpa-Cashmere-Mattress-Four-Layer-Viscoelastic/dp/B0088YV7XY/ref=sr_1_5?ie=UTF8&qid=1359034692&sr=8-5&keywords=lucid+mattress

Let me know your thoughts..

[hulley]

We purchased our memory foam mattress back in June from Overstock.com. I was also worried that it was too good to be true - about $600 for a king. We love it. It has held up wonderfully. It feels just as supportive as the ones we tried at furniture stores for 3 times the price.

This is the bed we bought:
www.overstock.com/Home-Garden/Select-Luxury-Swirl-Gel-Memory-Foam-10-inch-King-size-Medium-Firm-Mattress/6140625/product.html

[sjh722]

We have a nova form from Costco. My H is built like a linebacker (6'4 and around 250 lbs) and sleeps hot and we've had no problems with his size or the mattress being too warm. One of the big reasons I got it from Costco was their return policy, but we've had it for about 1.5 years and been very happy with it.

[sjh722]

We have a nova form from Costco. My H is built like a linebacker (6'4 and around 250 lbs) and sleeps hot and we've had no problems with his size or the mattress being too warm. One of the big reasons I got it from Costco was their return policy, but we've had it for about 1.5 years and been very happy with it.

[phoenixrising]

I got my memory foam mattress from IKEA. It was cheap, and I love it! I got the Sultan Finnvik.

[sparty04]

We have an Ara from Costco. Love it. Price is comparable to the other mattress you posted but it often goes on sale. We paid 999 for a king. It's a bit softer while still being firm if that makes sense.