After reading about all the chemicals in standard mattresses, I decided it was time to go natura. When I looked into wool mattresses they were above my budget so I opted for the mattress pad. Great choice because since putting it on, no more waking up with stuffed sinuses, sleep deeply thru the night, and it eased waking up stiff. Purchased the queen size for my double bed because I prefer to not pull things tight and it was the best choice in terms of size. Highly recommend. Great buy for the price.