LINENSPA Box Spring Encasement – King Size Box Spring Cover – Zippered and Waterproof Protector, Complete Protection – White

I have a dust mite problem and need something like this to prevent dust mite getting into the pillow and this is ideal.If you have a problem with mites and/or bacteria these are ideal to combat it.

Had this on an offer deal so wasn't expecting much. Seems to be good quality and easy to fit by standing mattress upright. Fit my double mattress in the spare room no problem. No sure whether it would stretch to fit a king size mattress though. Good value.

I think this is made for the US market so I ordered “Full” which is a little big for a Double but otherwise good value for money.