Will a 4-way-stretch fitted sheet really stay on a thick mattress?

Stretch-knit sheets like StretchSnug get strong marks for not popping off corners because the entire fabric, not just the elastic band, hugs the mattress. The trade-offs verified-purchase reviewers cite: a more T-shirt-like feel that some sleepers love and others dislike, and reports of the fabric thinning or tearing at seams after extended use.