Grenshaw twin mattress by Kingsdown

The Grenshaw twin mattress by Kingsdown is a 12.5" thick tight top mattress making it a firmer sleeping mattress.  The 480 coils are fortified in the center third of the mattress giving you more support where your body needs it most.  The coil edge gives you edge to edge support, a supportive edge when sitting, and makes the mattress a good choice for an adjustable base.  The adaptive foam used in the lumbar area and the poly gel foams give this mattress a cushioned firm but supportive feel, and features a 10 year warranty.

Kingsdown has been proudly producing fine handcrafted mattresses in the USA since 1904.  Each mattress made is meticulously hand crafted by master artisans and every square inch of every mattress is made with superior materials.  Kingsdown is the only mattress manufacturer that scientifically tests every single mattress for support accuracy so you can be sure the mattress you've chosen will deliver the proper ergonomic support your body needs for a healthy and holistic sleep.