MATTRESS POCKET is the ONLY sheet that will NOT pop-off a bunk bed mattress or Bunky Board! This sheet fits twin 75 inch regular length twin to 80 inch long extra long twin mattress 36 to 38 inches wide 6-9 inches thick Use at home, take to camp... When you order, for a best fit, you can email the Length, Height & Width of the mattress. This MATTRESS POCKET comes with >1 specialized fitted sheet (fitted sheet will always be a solid color. If you order a print the Top Sheet & Pillow Case will be printed fabric) >1 attached Top Sheet: attached on a long side of the fitted sheet so sheet doesn't dangle off Top bunk & won't drop to the floor! >1 pillow case FABRIC: (If you would like a picture of a particular print not shown, please email & I can send it to you. Toooo many to show on the listing but I can email a picture(s) to you! Not a problem!! >The solid color fabric is a polyester/cotton blend >The printed fabrics are cotton >>IF YOU SELECT A PRINT, The Fitted Sheet will ALWAYS BE A MATCHING SOLID COLOR FABRIC & THE TOP SHEET & PILLOW CASE WILL BE THE PRINTED FABRIC Easy on, Easy off, but will never Pop-Off! NO ELASTIC BANDS, NO ZIPPERS JUST STRETCHY POCKETS AT THE HEAD & FOOT OF THE FITTED SHEET TO HOLD THE SHEET INTO PLACE NO MATTER HOW MANY WIGGLY KIDS SCOOT AROUND ON THE BEDS! Easy to Make Up The Bed! The Top sheet is attached to the long back side (room at the head for arms & shoulders to be uncovered & room at the foot end to stick a foot & lower leg out. Plenty of wiggle room! When making the bed up, simply pull the Top Sheet forward to the front edge & lay it down! The bed is covered! RETURN POLICY: If we made a mistake, no worries! We will replace it or repair it. It is all on us. Please notify us of the flaw within the first 14 days of receiving your order. We want you to have a great set of sheets & we will make it right. If you order the wrong size, simply email me within 14 days of receiving your sheets & ship the sheets back to us & we will change it out for the correct size. If we owe you money in return we will apply the refund back to your purchase. If you owe us a tad bit more, we can work out payment arrangement via direct billing to you via the US Postal Service or invoicing the total due through PayPal. We will work with you on shipping & you will never pay a dime more than the actual shipping cost. Our company was built on the words of a very wise man who said Treat others as you want to be treated. Very simple philosophy. Read our feedback & reviews...it's working! The key is communication. Simply email us & let us know the problem or situation & allow us the opportunity to work with you to make it right! We want you to have a great set of sheets as well as a great shopping experience! ~Gina Foster, Owner Won't Pop-Off Sheet For Bunk Bed, Top Won't Fall To The Floor, Pop Off No Matter How Wiggly Kids Are Made By Pockets