The offering from Nectar and Casper is quite different. If you are looking for that classic memory foam feeling, Nectar will probably be more up your alley. Casper has a polyurethane foam layer on top to give it a more responsive sensation. While it doesn’t hug the body in quite the same way as the Nectar, it offers very good pressure relief and support for people in all sleeping positions. The Casper is priced a little higher than the Nectar – and both mattresses are on par when it comes to value.