Nectar Premier 13" Memory Foam King

In this nectar premier 13" memory foam king review, the Nectar Premier 13-inch Memory Foam King ranks seventh of nine mattresses in our 2026 best king size guide and carries the best medium-firm memory foam label at $1,099. That price buys a 13-inch, five-layer all-foam bed rated 4.1 stars from 303 Amazon ratings. It fits an 80 by 76 inch king frame and suits back sleepers and combination sleepers who want gentle cushioning at the hips without losing support. Anyone who needs a truly firm surface or sleeps very hot should check the alternatives listed below. Nectar backs the mattress with a 365-night trial and a Forever Warranty.

Five layers do the work, starting with a cool-to-the-touch cover and an extra inch of contouring memory foam over the Nectar Classic. In practice, that extra inch is what makes the bed feel plusher at the shoulders and hips while the deeper support layers keep the spine level. Medium firm sits in the middle of the scale, so the surface gives slightly on contact and then holds. On top of that, the 60% boost in cooling fabric targets the heat that all-foam mattresses usually trap. The 800-pound weight capacity covers two adults plus a pet, and the 13-inch profile takes standard king sheets and most bed frames. Motion transfer stays low, which means a partner who shifts at night barely disturbs you.

At $1,099, the Nectar Premier costs less than most king hybrids and adds a full year to test it, which is where the value sits. By contrast, the hybrid version in this guide adds coils and airflow, a better match if you overheat. Meanwhile, the Serta and the Nectar Classic suit shoppers who want a firmer, simpler foam build for less money. Even so, one honest caveat stands: 4.1 stars from 303 Amazon ratings is solid rather than perfect, and some sleepers still find all-foam beds warm. Setup takes minutes, since the mattress arrives in a box and expands within 24 hours. If you want a medium-firm king with pressure relief for your back and hips, plus a 365-night trial to change your mind, this is the one to get.