Serweet 12 Inch Foam and Spring Mattress , CertiPUR-US Certified Foams , Mattress-in-a-Box. The firmness, and comfort of the mattress are great. It has great support and it's not too hard or too soft, adjusts to your body rather quickly and makes going to bed the highlight of the day. Also, the set up was very simple and easy. 

Features

• Indepentdent pocket innersprings ,Knitted top cover made with breathable soft fabrics
• Medium Firmness Comfort
• 5-zone pocket springs targeted support for head, shoulder, back, waist, hips, legs and feet. 
• An independent coil system base layer encased with foam edge support resists motion transfer from a sleeping partner
• Supports a greatest weight of more than 500 lbs. 
• Highest quality foam is CertiPUR-US Certified for durability, performance, and content. 
• 2 foam layers for optimal softness and support. 
• Compressed into a box that's shipped right to your door, simply unbox, unroll and the mattress does the rest, expanding to its original shape within 72 hours. 
• 100 hassle-free night trial, 100-Days Money Back and worry-free 10 year limited warranty included. Please contact us for any questions.

Dimensions: 

Twin:      39"W x 75"L x 12"H         Box Dimension:11.4"*11.4"*44.1"        N.W.:46.3 lbs         G.W.:49.16 lbs

Full :       54"W x 75"L x 12"H        Box Dimension:15.7"*15.7"*31.9"        N.W.:62.17 lbs       G.W.:65.59 lbs

Queen :  60"W x 80"L x 12"H        Box Dimension:16.5"*16.5"*34.6"        N.W.:72.42 lbs       G.W.:75.84 lbs

Note:The mattress is not suitable for adjustable bed.Avaliable in 8"/10"/12" thickness mattress in below Product Collection.