We have found that mattress covers and pads can improve the quality of your sleep in several ways:
Protection from allergens and pests: The  mattress cover can acts as a barrier, preventing allergens such as dust mites, pollen, and pet dander from settling into your mattress and triggering allergy symptoms. It can also protect you from pests such as bed bugs.
Temperature regulation: Some mattress pads are designed to regulate temperature by wicking away moisture and allowing air to circulate, which can help you stay cool and comfortable throughout the night. This can be particularly beneficial if you tend to sleep hot or live in a warm climate.
Enhanced comfort: A mattress pad can add an extra layer of cushioning or support to your mattress, which can improve your comfort level and help you sleep more soundly.
Improved hygiene: A mattress cover can help keep your mattress clean and hygienic, which can prevent the growth of bacteria and unpleasant odors. This can be particularly important if you have young children or pets who may be more prone to accidents.
Prolonged mattress lifespan: By protecting your mattress from spills, stains, and wear and tear, a mattress cover can help prolong its lifespan, which can save you money in the long run.