- They're also difficult to put on a deep mattress
- and wear out faster than flat sheets (if you buy topsheet/flatsheet sets) because you can't swap them around like you can with two flatsheets. .
- They're also difficult to put on a deep mattress
- and wear out faster than flat sheets (if you buy topsheet/flatsheet sets) because you can't swap them around like you can with two flatsheets. .