After searching the Internet for a wool mattress topper we decided to go for the Deluxe, due to its higher GSM (1000gsm) compared to others. It is really well made; the elastic straps are effective and the cotton casing nice and soft. Thanks to the topper, both my husband and I are sleeping better in the night, turning less frequently. I used to feel achy in the morning but that has really improved. Having spent a lot on a high quality mattress, we did wonder whether the topper would make a difference but it has. Would really recommend to anyone! Delivery was quick and efficient.