Abstract: A supportive pillow braces a sleeping user's head in a supine position. The pillow has a viscoelastic body with a flat base and contoured top. The contoured top has two neck supporting ridges, positioned on either side of a head-receiving depression. A user rests their neck on the most comfortable neck supporting ridge (taller one for heavier people, shorter one for lighter people), with the head positioned in the depression. Lateral movement and rolling of the head is prevented by two bracing supports, positioned on either side of the viscoelastic body. For comfort, a softer cover is positioned over the viscoelastic body and bracing supports, improving the cushioning and breathability of the supportive pillow. The bracing supports and cover are also viscoelastic, with them and the viscoelastic body commonly being made from viscoelastic polyurethane, e.g. memory foam. The benefits of the supporting pillow have applications in medical and other fields.