Can I buy the protector in John Lewis? Simba - Odyssey November 23, 2017 09:38 Updated Follow Our Mattress Protector is an online-only product, exclusively available through our website. Related articles Is it actually waterproof? How do I use my Simba Mattress Protector? How does the 100 night trial work? Do I turn my mattress over regularly? What is the protector made of?