Our range of Smooth Poly Fully Encased Anti-Allergy Mattress Protectors feature the unique BugLock system, best for severe asthma and allergies, and everyday value. The system helps maintain a hygienic anti-allergy mattress, protected from bed bugs, allergens, dust mites, bacteria and mould. The fully encased BugLock system combines a dust-proof flap and tamper-proof SecureSeal, which makes the mattress bed bug entry, escape, and bite-proof, and ensures allergens cant become airborne. Has a dust-proof flap and tamper proof SecureSeal making the mattress bug entry, and escape proof, whilst also ensuring allergens cannot become airborne. Patent Pending. Simply fit and forget by laying a Protect-A-Bed fitted mattress protector on the top for easy removal and regular washing with other bedding. 100% smooth polyester sleep surface, perfect for everyday family use. 100% Smooth Polyester sleep surface. Electric blanket safe. Machine wash and tumble dry.