I am so glad Wayfair has a fitted sheet that fits my 12" mattress that will not pop off from the corner of my bed! I'm so happy i'm jumping for joy! I got so tired of fixing the corner of the fitted sheet i got from walmart several months ago! It would pop off at least 3 or more times a day! Is been a week so far & the fitted sheet i got from Wayfair still stay put! Thank you Wayfair! Your fitted sheet WORKS!!!!