We did our research and felt the Serta Icomfort Savant was the most reasonable price with quality. After the first two weeks, what a difference. We both felt like we were sleeping on a cloud and no more aches and pains. We were sleeping thru the night and when I turn over, my husband doesn't even feel it. When it's cold outside, the mattress is warm. When it's warm, the mattress is cool. We should have bought it sooner!