Sleeping Giant Art&Science

All specs are for Firm, Queen-sized mattresses.

	Silver	Gold	Gold Plus	Gold Advance	Notes
Price	$500	$700	$900	$900	Gold Advance is on sale, down from $1000
Zones	3	5	3	5	-
Pillow top	No	Euro	Euro	Yes	-
Comfort layers	20mm medium/firm foam	20mm medium/firm foam	50mm firm/medium foam	50mm medium density foam	-
Edge support	-	2 rows of 2.2 gauge springs	8.5cm foam box + heavy gauge wire	8.5cm foam box + heavy gauge wire	-
Quilt layer	18mm quilting foam	10mm quilting foam, Quilting fibre	20mm quilting foam, Quilting fibre	10mm quilting foam, Quilting fibre	-

We know we already like the Silver mattress, it has 1.8/2.0/1.8 gauge springs in its three zones.