The adjustable pillow has technology to keep you warm or cool while you sleep - (Simba) The quest for the perfect pillow can feel never-ending. One moment you're desperately flipping it to find the cool side, the next you're plumping it up to fend off a neck ache. If this nightly struggle sounds familiar, Simba’s Hybrid pillow might just be the solution you’ve been dreaming of. Instead of a single, solid block of memory foam, this pillow is packed with hundreds of tiny, open-cell foam ‘nanocubes’.