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The Mainstays NexGen is a waterproof fitted mattress protector for a Twin bed, made from polyethylene and polypropylene as a vinyl-free alternative. Elasticized corners hold it on mattresses up to 11 inches deep, and the surface wipes clean instead of going in the washer. It suits budget-minded households protecting a kid's bed, a guest room or a dorm mattress from spills. Against cotton-terry and quilted protectors it is thinner and noisier, and it lacks the soft top layer those rivals add, but it is hypoallergenic and simple to maintain.
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With 4.3 out of 5 from over 8,400 ratings, owners mostly report it does its job as a basic waterproof barrier and stays put on the mattress. Complaints center on the plasticky feel and noise, and some find it less durable than expected.
The Mainstays NexGen Waterproof Fitted Mattress Protector covers a Twin mattress. Its waterproof construction helps guard the mattress against ordinary spills and occasional accidents.
It has a fitted design with elasticized corners that fits mattresses with a pocket depth of up to 11 in, so it stays in place on the bed. It is made from 100% polyethylene/polypropylene in a NexGen vinyl-alternative design.
The protector is hypoallergenic. To clean it, wipe it down.






