At least this tutorial is simpler than the other one, which involves folding specific corners over other corners.
Although I think OP’s struggle is getting the sheet to fit on the bed itself. IMO it’s better to get one that’s slightly too big than slightly too small, since you can tuck the excess under the mattress.
If the excess really bothers you, there are also these little straps you can buy with little suspender clips on either end, and you can use them across the corners to snug up your sheets. I had some knit jersey sheets once that would not stay on until I got some of those.
At least this tutorial is simpler than the other one, which involves folding specific corners over other corners.
Although I think OP’s struggle is getting the sheet to fit on the bed itself. IMO it’s better to get one that’s slightly too big than slightly too small, since you can tuck the excess under the mattress.
If the excess really bothers you, there are also these little straps you can buy with little suspender clips on either end, and you can use them across the corners to snug up your sheets. I had some knit jersey sheets once that would not stay on until I got some of those.
Edit: These thingies, sheet stays
I wish I’ve gotten these sooner, feel like they’ve improved bed comfort and sleep quality