Spring Air Merion Full Mattress. We stock this mattress in full size or special order other sizes. 4" or 9" Foundations sold separately. This mattress is a great choice for kids and teens for its comfort and affordability. Made in California, this is our best affordable option offering a firm gauge coil support system without breaking the bank. This mattress works great with our twin beds, trundle beds, bunk beds and storage platform beds.For more than 86 years, Spring Air has set the standard for quality mattresses and sleep systems. A great night's sleep starts with a mattress that can both support the body and relieve pressure where it is needed most. Made in Fresno, CA. Manufacturer: Pleasant Mattress.According to California's Used Mattress Recovery and Recycling Act (enacted in 2013 and amended in 2014) there is an $10.50 recycling fee per unit purchased. See www.mattressrecyclingcouncil.org.