<human>: What is the best way to: How to put a fitted sheet on a bed?

OPTIONS:
- Start with a bed full of covers, and pull each corner over the mattress, over top of all the other blankets.
- Start with a bare bed, and pull each corner over the mattress corner and tuck underneath the matress.
<bot>: Start with a bare bed, and pull each corner over the mattress corner and tuck underneath the matress.