How to turn the mattress without a right angle?

First, the sheets are laid flat on the mattress, and the four corners of the sheets naturally droop, taking one corner as an example;

1. Press the corner of the mattress with your left hand and wrap the sheets under the mattress with your right hand. When wrapping, tie the sheets tightly;

2, the right hand spread out, together with sheets and mattresses;

3. Straighten the edge of the sheet with your left hand to form a right angle of 180 degrees;

4. Place one side of the sheet above the mattress. Mattress is best to divide the edge of the sheet into two, that is, the sheet placed on the mattress is equal to the hanging sheet;

5. Then put the sheets below into the mattress;

6. Then, pull down the top sheet to make it tight, and then put it under the mattress to complete the corner wrapping of the sheet.