For you search query Casper we found around 417186 songs. We may show you only some of them on this page. Yes, we're talking about our mattresses. As with all foam beds, you want as much direct support under the mattress as possible. For optimal support under all sizes (twin, twin XL, full, queen, king, Cal king), we suggest using the Casper foundation. Casper is a American fantasy comedy-drama film directed by Brad Silberling, based on the Harvey Comics cartoon character Casper the Friendly Ghost.