The Bottom LineCasper Wave and Avocado are completely different in their construction and features. While Casper is an all-foam mattress, Avocado is a latex hybrid, more comparable to Nest Hybrid Latex. The resilient materials make Avocado better for stomach and back sleepers. The Casper has zoned support with memory foam that conforms to the curves of side sleepers better. However, if you are on the heavier side, both Avocado and Casper Wave will have a harder time supporting you well. Nest Hybrid Latex scored higher than both Casper Wave and Avocado, in comfort, motion isolation, and cost-based value. Available in soft, medium, and firm, Nest is an equally good choice for side, stomach, and back sleepers. Being 13-inch thick, it is remarkably supportive for heavier persons. Both Avocado with its organic cotton offering and Casper Wave with its zoned support offer medium-firm comfort and an average value for money. Although pricier than Avocado, the Nest delivers superior durability, comfort, and support out of these three luxurious mattresses.