Most mornings when i wake up the lining of my vagina at the top by my abdoman itches?? why is this??

Overnight itching: Often this is due to either skin or vaginal secretions overnight or due to contact with the sheets, night clothes, or bedding that serve as irritants. Take a shower at bedtime. Make sure that your bed sheets are thoroughly rinsed of all soap in the wash cycle, and avoid skin lotions or powders in that area. Make sure that any "critters" aren't residing in your bed.(insects not humans).