There are bands with clips on the ends which go between the mattress and box spring to secure flat sheets when they're used like this. This is pretty much what everyone did before elastic was available for fitted sheets.
Some high end hotels still do this because the flat sheets are more durable than the elastic, and when you're washing the sheets daily, it'll cause the elastic to wear out much, much quicker than in a home setting.
tawzerozero t1_j2dhcm8 wrote
Reply to comment by brick20 in LPT: No one cares if your fitted sheets are folded by Aunt_Anne
There are bands with clips on the ends which go between the mattress and box spring to secure flat sheets when they're used like this. This is pretty much what everyone did before elastic was available for fitted sheets.
Some high end hotels still do this because the flat sheets are more durable than the elastic, and when you're washing the sheets daily, it'll cause the elastic to wear out much, much quicker than in a home setting.