How to treat a mattress for lice? - briefly
Thoroughly vacuum the mattress, launder all bedding in water above 130 °F, and apply a heat treatment or an EPA‑approved lice spray to the surface. Afterwards, encase the mattress in a sealed cover for at least four weeks to block any surviving nits.
How to treat a mattress for lice? - in detail
Treating a mattress that has become infested with lice requires a systematic approach to eliminate the insects and prevent re‑infestation. The process consists of three phases: preparation, eradication, and follow‑up.
Begin by removing all bedding, including sheets, pillowcases, blankets and mattress protectors. Wash each item in hot water (minimum 130 °F / 54 °C) for at least 10 minutes, then dry on the highest heat setting for 30 minutes. Items that cannot be laundered should be sealed in plastic bags for two weeks, a period that exceeds the lice life cycle.
Next, address the mattress itself. Follow these steps:
- Vacuum thoroughly. Use a high‑efficiency vacuum with a HEPA filter; pass over the entire surface and seams for at least five minutes. Immediately empty the vacuum bag or canister into a sealed bag and discard it outdoors.
- Apply a suitable insecticide. Choose a product labeled for lice on fabrics and mattresses, containing ingredients such as permethrin (1 %) or pyrethrin. Spray evenly according to the manufacturer’s instructions, ensuring coverage of the top, sides and any crevices.
- Use a heat treatment. If an insecticide is not preferred, place a portable steam cleaner on the mattress, moving slowly to deliver steam at 212 °F (100 °C) for the full surface. Alternatively, rent a commercial heat chamber that raises the mattress temperature to 130 °F (54 °C) for 30 minutes; this temperature kills all stages of lice.
- Seal the mattress. After treatment, cover the mattress with an encasement specifically designed to block insects. Ensure the zipper closes fully and the fabric is tightly woven.
Finally, monitor the environment. Inspect the mattress weekly for the next month, looking for live insects or eggs. Maintain a routine of washing bedding weekly in hot water. Reduce clutter around the bed, as folds and fabrics can harbor lice. If any signs of resurgence appear, repeat the vacuum and insecticide steps promptly.
By adhering to these procedures, the infestation can be eliminated efficiently, and the risk of recurrence minimized.