Sleep Better with the Ultra Sleep Foam Mattress. The Ultra Sleep Sofa Sleeper Mattress is a compact foam mattress that folds perfectly into your sofa and then returns back to its original shape. This mattress conforms to the contours of your body. As you move it will gently fill in any void and will minimize reciprocal movement between sleeping partners. Perfect for Sofa Sleepers, RV's, Bunk Beds, or Standard Bed with Foundation. Contact customer service for additional information and bulk pricing.