Heavy Duty Mattresses for sale at Daily Care Medical Supplies. Heavy Duty mattresses are built to last and feature a variety of sizes ranging from 36″ to 48″. Heavy Duty Mattresses vary from basic foam, sore prevention foam, and air mattresses. Heavy duty mattresses are great for bariatric patients, but also great for people who want more room then the traditional 36″ bed. For patients who are not prone to bed sores we recommend a basic heavy duty mattress. For patients who are prone to bed sores we recommend a sore prevention mattress, because it is able to prevent bed sores by protecting the skin from shear and friction. Finally, for patient who do suffer from bed sore we recommend an air mattress, because it will alternate pressure healing the sores and relieve any additional pressure preventing new sores from happening.