Care Guide

Every SafeRest product survives the washing machine — that is a design requirement, not a bonus. But the waterproof membrane has two enemies, heat and chlorine, and almost every early failure we have ever inspected traces back to one of them. This page is the whole science.

The rules

	Do	Avoid
Washing	Machine wash cold, regular detergent, with your normal bedding load	Hot water, chlorine bleach, fabric softener
Drying	Tumble dry low; fully dry before reinstalling	High heat, ironing, radiators and other direct heat
Encasements	Zip fully closed before washing so the teeth do not catch the drum	Washing more often than needed — sealed on the bed, they stay clean

How often

• Fitted mattress protectors — with your sheets, every one to two weeks. They are built for that cadence and it keeps the sleep surface genuinely clean, not just covered.
• Pillow protectors — monthly is plenty; the pillowcase above them takes the weekly wash.
• Mattress and box spring encasements — only when something actually reaches them. Under sheets and a protector, that can honestly be once or twice a year.
• After an accident — wash the affected layer promptly; the membrane stops liquid, but the fabric above it holds it until laundered.

Why cold and low, specifically

The membrane is a thin polyurethane film bonded to fabric. Repeated high heat makes the film brittle; chlorine attacks the bond itself. Either way the failure is invisible — the protector looks fine and quietly stops being waterproof. Cold water and a low dryer keep the film flexible, and a protector cared for this way routinely outlives the mattress warranty it protects.

The annual check

Once a year, pour half a glass of water onto the protector in a sink and give it ten minutes. Dry underneath means it is still doing its job. Damp underneath means it is time to replace — before the bed finds out the hard way.