Mattress Helper Under Mattress Support - Fix Your Flabby Mattress With Aid, Firmer Solution, Twin Side Coverage (Half Full/Queen)

Designed to raise sagging mattresses towards their original firmer shape. IMPORTANT: Works best with a flat, functional box spring under your mattress. Improved outer fabric. Please note before ordering the proper size for your mattress i.e. Twin, Full/Queen, or King and measure how the mattress helper will be placed under the mattress.

BACK SUPPORT FOR SLEEP - Supports your back by firming the mattress and acts as a support board. If you experience pain as a result of using this or any product, stop using it. Medium Support

See for yourself why MATTRESS HELPER is a great national brand selling to thousands of happy sleepers for the past 10 years. Our multi-patented product has never compromised with the durable high-density polyurethane foam materials we use so we can continue to offer the same reliable under-mattress support that our customers love!

DOCTOR REVIEWED & APPROVED - Note: Mattress Helper does not fit under the full mattress, but only 20"W x 50"L fills only the soft/sagging area where the body trunk is located night after night. Please measure before ordering to see if the size is right for you. If you need extra length - We offer the mini mattress helper on Amazon.

LEVEL BED SURFACE - We recommend one (1) mattress helper per bed for a level bed surface. Product Sizes: </p><li>Full -20" x 50" - Two (2) NEEDED </li><li>Twin - 31" x 50", one is needed (1) </li><li>Queen - 20" x 50", two (2) needed </li><li>King - 31" x 50", takes two (2) </li><p>IMPORTANT SINGLE COVERAGE - Please purchase only 1 as twin or 1 side of the mattress as the single side coverage does not cover the entire bed. Please measure before ordering. Proudly made in the USA

FAQ: Will Mattress Helper cover the entire width and length of the mattress? No: Mattress Helper was designed to cover only the area that SAGS, which is usually where the body trunk is placed night after night. If you need longer coverage, we also sell the Mattress Helper MINI on Amazon. 2. What size should I order? Please refer to the size information in the "About this item" section.