Can I buy the protector in John Lewis? Simba - Odyssey March 29, 2018 03:38 Updated Follow Our Mattress Protector is an online-only product, exclusively available through our website. Related articles How does the 100 night trial work? Is it actually waterproof? How do I use my Simba Mattress Protector? Do I turn my mattress over regularly? What is the protector made of?