The millbrook 1700 pocket mattress is the perfect choice for a night of comfort and support ensuring you wake every morning fully refreshedthere are up to 1700 pocket springs each responding to each person lying on it this also ensures that if two people share the bed each person will have support according to their needs pocket springs also help to prevent any roll together or disturbances by one person affecting the other person sharing the bedpure new wool and natural cotton are added as t