I have had lower back pain for some time and was worried when trying to find the right matress to suit myself and my husband. I am of slim build at 9st whereas my husband is tall at 13st. This matress is perfect , it does not move when my husband turns , it is firm and yet very comfortable with thick padding. After only one week my lower back pain has reduced considerably, almost to non at all. Great value for money , perfect choice in matress .