This is a new factory sealed Sleep Calm Mattress Protector Full XL by Fashion Bed Group. cotton_blend Size: Full XL 100% waterproof advanced cotton-toweling fabric repels spills and stains. Highly breathable fabric sleeps cool and provides a supple, smooth sleep surface. Super-stretch skirting smoothly fits most mattresses for easy placement. Creates a barrier against dust mites and pet dander for a better night’s sleep.