Peak 2.0 Twin Mattress

The Peak 2.0 from Ashley's Sierra Sleep line is a straightforward twin mattress built around a Bonnell coil system layered with plush quilt foam and luxury loft fiber. The coils deliver classic, responsive support across the full surface, while the foam layers soften the feel to a medium comfort level — supportive enough for a range of sleepers without being stiff. A Hyper Cool 4-way stretch knit cover wraps it all together and helps keep surface temperature regulated through the night. At 8 inches tall, it works well on a standard foundation or platform base, and it ships compressed in a box — give it 48 hours to fully expand after opening before sleeping on it.