Satin lyocell sheet set 320 thread count All-around elastic on fitted sheet Made in Green by OEKO-TEX Forest Stewardship Council Certified Description Give your bedroom a new look and feel with this 320 Thread Count TENCEL® Lyocell Sheet Set from Threshold™. The soft and breathable lyocell satin fabric helps you get a comfortable night's sleep, while the fully elasticized fitted sheet lends a secure fit around an 18in mattress. Best of all, you can simply toss this set in the washing machine for easy cleaning.