Why worry when you can chime? With the Sierra Sleep® Chime innerspring full mattress, you have endless possibilities for restful sleep. Feel the support of a truly traditional coil mattress which contours to your body for a comforting feel. High density foam provides the firmness you love. Gel memory foam provides restorative support for your lower back. Hypoallergenic material is ideal for sufferers of allergies for ultimate undisturbed sleep–not to mention peace of mind. Plus, this mattress arrives in a box for quick and easy setup. Simply bring it to your room, remove the plastic wrap, and unroll. You’ll be amazed at how it fully expands within minutes. Foundation/box spring available, sold separately. Mattress Type: Innerspring, Mattress In A Box Included: 1 Mattress(es) Features: Foam Layer Coil Count: 377 Coils Bed Size: Twin Measurements: 12 Height/Inches, 37.99 Width/Inches, 74.41 Length/Inches Maximum Weight Limit: 200 Lbs Base Material: 80% Polyester, 15% Metal, 5% Other 5% Or Less Comfort Type: Firm Care: Spot Clean Mattress Height: 12" Country of Origin: Imported Visit our Furniture & Mattress Customer Care Center for delivery options, protection plans and other services. Problem with an order or need help with a return? Our Furniture & Mattress Customer Service agents will be happy to help. Give us a call at 1-800-442-7902 Don’t forget to print off your delivery checklist to avoid any delays or issues when delivering your item. Signature Design by Ashley is a registered trademark of Ashley Furniture Industries, Inc.