Mattress in a Box Standard King Mattresses

King

This memory foam mattress updates your bed with support and a breathable feel all at once. It has a medium-firm feel made up of three layers: A high-density base foam, ventilated pressure relief foam, and a top layer of memory foam infused with green tea. The middle layer is designed to eliminate pressure points along your body, with airflow to reduce body heat while sleeping. Plus, with its tight top and low-motion transfer design, it's great if you have a sleeping partner who tosses and turns. We love that it's 10'' high and yet comes conveniently rolled in a box for easy shipping. Simply unbox, unroll, and give it some time to expand. Plus, this mattress comes with a 10-year warranty.

Cozy bedroom vibes!! Great purchase. Comfortable mattress, great sleep!. Anca. Belleville, MI. Thu Jun 26 2025

King

This 8" medium memory foam mattress lays the foundation for a good night's sleep. It's crafted from polyester in a white hue with a wide variety of sizes to choose from. Its rectangular silhouette features a tight top that provides proper edge support, making sure your sheets stay in place. The layers of high-density quilting foam and padding contour to the shape of your body. This mattress arrives compressed inside a box, so we recommend giving it time to expand to its size. Best of all, it's backed by a 5-year manufacturer's warranty.

I bought this originally in a queen size 14 inch and for my guestroom and everyone loved it so I ordered for the trundle bed, in the 8 inches which was recommended. It’s perfect and waiting on the 2nd. Shannon. Nepean, ON. Wed Jul 02 2025

King

Whether you're settling in for an afternoon nap or drifting off for a good night's rest, this mattress is here to help you get the sleep you need. Crafted from layers of memory foam, it features medium firmness and a breathable design to help keep you cool while you sleep. Plus, with its tight top and low-motion transfer design, it's great if your partner tosses and turns. This product includes a stain and fade-resistant cover to help keep your mattress feeling fresh and the cover fabric is designed in a white hue that won't peek through lightly coloured sheets. Our mattress is backed by a 10-year warranty.

It’s okay. It was easy to remove from packaging and it is indeed 12”. My partner seems to really enjoy it, but I find it way too firm. It’s described as medium…..but it feels much firmer than that…to me at least. Oh well. Didn’t care for the old mattress anyways so doesn’t make that much difference at the end of the day for me…shrug.. Parker. Los Angeles, CA. Tue Jun 24 2025

10", King

This 10" thick mattress has a tight top and low motion transfer, so it's designed to let you stay asleep, even if your partner tosses and turns. With a sturdy base of support foam and a plush layer of memory foam on top, this hypoallergenic mattress cradles your body to align the spine for optimal comfort levels. It's also breathable to increase airflow and help regulate temperature. This mattress is compatible with an adjustable bed base (base and frame sold separately). Plus, it arrives at your doorstep packed in a box and is backed by a 10-year manufacturer's warranty.

Not too heavy to move from the porch into my sons room. And It was easy to remove from the plastic. I think my son will appreciate his new mattress as soon as it inflates.. Dayana. Spartanburg, SC. Sun Jun 01 2025

King

Whether you like to curl up or spread out, this 10'' memory foam mattress is here to help you get the night's sleep you deserve. Crafted using three layers of hypoallergenic gel memory foam with a tight top, this mattress features a slow-motion transfer design that helps you fall asleep and stay asleep even if your partner tosses and turns. Plus, since it's both breathable and has cooling technology, you can stay cool while you snooze. This mattress is protected by a 10-year warranty, so you can drift off with peace of mind, too.

Really thick, so doesn’t fit some twin mattress sheets. Comfortable. Holding its shape well for now.. Anonymous. Sat Jul 05 2025