Can I buy the Protector in John Lewis? Simba - Odyssey November 09, 2017 11:07 Updated Follow Our Mattress Protector is an online-only product, exclusively available through our website. Related articles Is it actually waterproof? How does the 100 night trial work? How do I use my Simba Mattress Protector? Do I turn my mattress over regularly? What is the Protector made of?