A pillow top mattress gives you a much softer feel and creates that ‘sinking into a cloud’ feeling when you get into bed. Pillow tops give you a soft to medium firm feel and are ideal for those who prefer to sleep on their back or front.Memory foam tends to mould itself to the shape of your body more than a pillow top, cradling your body and keeping your spine in a neutral position and offering more support at the neck, shoulders, and lower back, which may be more comfortable for side sleepers. Memory foam can also form an important supportive layer in orthopaedic mattresses.