Helix Mattress Protector vs Mainstays NexGen Waterproof Zippered Mattress Protector

Buy the Helix if you want a quiet, breathable, organic-cotton-topped protector that feels like your mattress and fits deep mattresses up to 16 inches. Buy the Mainstays NexGen if you want a full zippered encasement that seals the whole mattress, including the sides and bottom, and comes with a 3-year warranty. The Helix wins on feel and materials; the Mainstays wins on coverage and enclosure. Helix owners praise the noiseless, stretchy fit, while Mainstays reviewers like the secure zip and easy care, though some find the vinyl-free fabric crinkly and warm.

• Choose the Helix Mattress Protector if you want a soft, noiseless, GOTS-certified organic cotton top that stretches over a deep mattress and stays breathable.
• Choose the Mainstays NexGen if you want a zippered cover that fully encases the mattress, sides and bottom included, with a 3-year warranty.