A mattress protector may be cotton, padded, waterproof, or a combination, and each construction tolerates different temperatures. Waterproof membranes are especially vulnerable to high heat and harsh products.
Read the care label before choosing temperature
Check materials, maximum wash temperature, dryer instructions, and bleach restrictions. A waterproof protector may look durable yet delaminate when washed or dried at excessive heat.
Close zippers and pretreat stains
On full encasements, close zippers to reduce snagging. Pretreat localized stains with a compatible product rather than increasing detergent for the entire load.
Leave enough room for thorough rinsing
A bulky protector needs room to move in the drum. If it stays tightly packed, detergent and soil can remain in folds; an undersized washer may mean using a larger-capacity machine.
Dry for the most heat-sensitive layer
For waterproof protectors, use air drying or low heat when the label directs it. Do not put a damp protector back on the mattress because trapped moisture can cause odor and support microbial growth.
Sources
- American Cleaning Institute — Laundry Basics — Household laundry, dosing, stain treatment, and fabric care according to care labels.