In countless areas of the world a second plane bed sheet is laid on top of the sheet covering the mattress
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Rectangular bed pillows frequently do not have zippers, but instead have sole flanking open all the time |
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| It is recommended that all types of pillow covers be laundered periodically since they are the any that is in contact with a person's body |
| But even with regular washing, pillows tend to accumulate colossal amounts of earth and vast numbers of microbes among the fill and it is recommended that they be replaced every few years, especially for those with allergies. |