Single blow -up mattresses (Narborough LE19)

2 old, but serviceable, single size air mattresses. Note that although these have been stored for years in a dry loft, they both have an amount of mildew stains from natural humidity. If you know how to remove this from them that's great - come and collect them. Otherwise if they don't go, I'll just take them to the waste skip since I don't think these can be recycled.