This might sound 'corky' to some but I have bought (all sizes) several sheets at a thrift store. Thrifty, thrifty, thrifty! One white in particular is for my queen & is of very, very good quality..

Costco and Sam's club has great prices on sheet sets.

Make sure that if you have the thick mattresses the sheets allow for this. My king and even my twin have the pillow top so I have to make sure to check the sides of the mattress measurments too.

Nothing wrong with that! Just wash them with antibacterial soap in hot water. Ive found some great deals at local thrift stores.

I just bet you could google how to make fitted sheets and something would come up on u tube

They have some nice, reasonable, organic cotton ones at Target as well.

Why not? people use them for quilt backings.

We have a craftmatic bed and they take XL twin fitted sheet. I got twin sheets, flat at WM. washed and laid on bed even on all 4 sides. Pinned 4 corners at 90 degrees. After I sewed them, I trimed them and then made casing top and bottom 1 foot from corner all around the end and other corner. Then I put elastic in and sewed it at both ends and a king flat sheet and I had sheets. If I buy to sets of XLT sheets I have to sew the top sheets together and they can be hard to find, usually when collage starts you might find some as that is size they use in dorm rooms.

I sat here laughing to myself about the "prehistoric times". I remember having 2 flat sheets on the bed when I was kid. The bottom sheet was undone every morning.

I just make sure they're deep enough for the pillow top mattress we have and the mattress pad. I am amazed at people who don't use mattress pads. When we bought our last mattress, they asked if they could weigh the current one. The new one weighs more than the old one did. They were shocked. Usually old ones weigh more because of dust and gross. Told the guys we use mattress pads that are also water proof. We perspire heavily and I also wash them at least once a month. Also use one for the foundation. They just look at us. I know there are patterns for fitted sheets. Just Google.