I've seen some references on the net to making a hammock from a bed sheet - has anyone tried that? would be strong enough?

If so, then could you make a hammock with a pad pocket by taking a king size sheet (120 x 90), folding it in half then making wipping the hammock by folding in half again and gathring it up? When you opened it up, there would be two layers of matrial which would be opened on one side of the hammock.

Now I'm thinking, if you can make a hammock from a bed sheet, then perhaps there is some sort of quilted bed spread that you could use to make an insulated hammock.