The M1 Mattress by Bedgear is the more firm cousin to the best selling M1X Mattress from Bedgear. It is also created with breathable Boost® and React® foams for the coolest sleeping experience possible. It is also an excellent alternative to the tempurpedic's of the world - similar feel without the insane price tag! The M1 mattress is created with cool sleep in mind: it enhances airflow and has a cool-to-the-touch moisture wicking cover that will help you get into that deep sleep that you need to recover. The M1 is often used by high level athletes but is suitable for anyone. The M1 performance mattress goes perfect with any adjustable base or it can be used on a normal box spring, your choice. The M1 mattress is available in Twin, Twin XL, Full, Queen, King, and California King.