The Bottom LineCasper offers the zoned support, that makes Casper a suitable slumber surface for all sleep positions. Both mattresses have an excellent conforming ability for precise support. Bigger persons feel more supported on 2920 mattress than Casper. 2920 has secure edges, notable for those who expect to share the bed with children. Of the two beds, Casper seems to offer better heat regulated rest, but 2920 is the winner in comfort and healthy support.