Most people would say that sleeping on a mattress on the floor is not comfortable. There are a few reasons for this. First, mattresses are designed to be used with a frame and box spring. This helps to distribute your weight evenly and provides support for your back and spine. Sleeping on a mattress on the floor can put extra pressure on these areas, leading to pain or discomfort. Additionally, mattresses on the floor are more likely to attract dust, dirt, and other allergens, which can be detrimental to your health. If you are looking for a comfortable way to sleep on the floor, there are a few options. You can purchase a special floor mattress or you can use a futon or other type of mattress that is designed to be used on the floor.