Correct posture starts at your feet and by measuring your gait, we can help you pick out flat feet, high arch, knee intorsion and hip misalignments. Custom made orthotics are available as an option to aid patients correct their misalignment. Sleep Assessment Including Pillow and Mattress Suitability Let us know what pillow you are using and we can show you our top recommendations to achieve best sleep minimising head and neck pain by using the wrong pillow. Your mattress should be changed every 10 years and your pillow every 3 years. How old is yours?