How to remove clothing lice from a mattress? - briefly
Vacuum the mattress completely, then steam‑clean or treat it with an approved lice insecticide, and seal it in a zippered encasement for at least two weeks. Wash all bedding in water ≥130 °F and dry on high heat to eliminate any remaining nits.
How to remove clothing lice from a mattress? - in detail
Eliminating clothing lice from a mattress requires a systematic approach that combines physical removal, thorough cleaning, and preventive measures.
First, isolate the contaminated area. Strip the bed of all linens, pillowcases, and covers. Place each item in a sealed plastic bag and transport to a hot‑water washing machine. Use water at a minimum of 130 °F (54 °C) and a high‑efficiency detergent; dry on the hottest setting for at least 30 minutes.
Next, address the mattress itself. Vacuum the entire surface with a HEPA‑rated attachment, moving slowly to dislodge eggs and adult insects. Empty the vacuum bag into a sealed container and discard it outdoors. After vacuuming, apply a steam cleaner set to at least 212 °F (100 °C). Move the nozzle steadily across the fabric, ensuring the steam penetrates seams and crevices. Steam kills both lice and their eggs within seconds.
If steam is unavailable, use an approved insecticide spray labeled for use on upholstered furniture. Follow the manufacturer’s dosage instructions precisely; spray evenly, covering all sides of the mattress. Allow the product to air‑dry for the recommended period, typically 24 hours, before re‑covering the bed.
To further reduce the risk of re‑infestation, encase the mattress in an airtight, zippered cover designed to trap insects. Leave the cover on for a minimum of two weeks, checking daily for any signs of activity. During this period, keep the bedroom temperature low (below 68 °F or 20 °C) and humidity below 50 % to create an unfavorable environment for lice development.
Finally, inspect clothing and personal items that may have contacted the mattress. Wash or dry‑clean all garments, shoes, and accessories at high heat. Store items not immediately needed in sealed plastic containers.
By following these steps—isolating bedding, vacuuming, steam or chemical treatment, protective encasement, and strict laundering—clothing lice can be eradicated from a mattress and prevented from returning.