Memory Foam Full Size Mattress

The Sweetnight Prime Memory Foam Mattress is a full-size mattress delivered conveniently in a box to your doorstep. As a bed-in-a-box, the Sweetnight Prime makes setting up a comfortable full-size memory foam mattress easy. Simply remove it from the packaging and let it expand on your bed frame. Within minutes, you’ll have a premium memory foam mattress ready for restful sleep.

In this Sweetnight Prime mattress review, we’ll look at the convenient shipping, quality construction with cooling memory foam, and exceptional comfort that makes this an excellent memory foam mattress for full-size beds. Whether you need to upgrade an old spring mattress or want the body contouring support of memory foam, Sweetnight Prime is an affordable option offering great value.

Memory Foam Full-size Mattress Overview

Prime Memory Foam Mattress

Convenient Shipping

One of the best features of the Sweetnight Prime memory foam full-size mattress is the box shipping. Vacuum-sealed and rolled tightly, the mattress fits conveniently into a box that can be shipped for free right to your door. Compared to scheduling time-consuming traditional mattress delivery and setup, the ease of Sweetnight Prime’s box shipping can’t be beaten.

Once the mattress arrives, simply take it to your bedroom, carefully slice open the outer packaging, and watch as the mattress rapidly expands and takes shape. After 2-5 minutes, the Sweetnight Prime Memory Foam Mattress will be fully inflated and ready to provide a great night’s sleep on your full-size bed frame. No extra work is needed – just enjoy your comfortable new mattress.

Cooling Memory Foam Construction

Constructed with three layers of high-quality foam, Sweetnight Prime was thoughtfully engineered for cooling comfort and pressure relief.

The top layer utilizes 2 inches of gel-infused memory foam. The advanced gel infusion pulls heat away from the body while the memory foam cradles curves for tailored alignment of joints and the spine. This creates a cooler, more comfortable rest than traditional spring mattresses.

In the middle is a 2-inch transition layer of Soft-Air Foam. This responsive foam adds bounce and support while allowing maximal body shaping from the memory foam top layer.

The base of the mattress features 6 inches of durable, high-density support foam. This provides a sturdy foundation and edge support for the softer comfort layers on top.

Together, the three foam layers offer body-hugging comfort and support for all sleeping positions. The gel-infused memory foam regulates temperature, while the Soft-Air and support foam layers provide pressure relief. The thoughtful construction is optimized for supporting full-size sleepers.

Exceptional Comfort

Prime Memory Foam Mattress


When it comes to comfort, the Sweetnight Prime Memory Foam Mattress delivers excellent all-around performance for most full-size sleepers.

The Sweetnight memory foam layers cushion joints while aligning the back. This removes pressure from hips and shoulders for side sleepers and evenly fills space beneath the pelvis and lumbar region for back sleepers. Stomach sleepers benefit from proper spinal alignment and relief of strain on the neck as well.

The medium firmness of Sweetnight Prime avoids excessive sinkage, making moving across the surface of the bed easy. The mattress does a nice job isolating motion between sleeping partners as well thanks to the responsive memory foam.

Compared to a traditional innerspring mattress, the Sweetnight Prime Memory Foam Mattress excels at cushioning the body with its contouring memory foam layers while supporting superb spinal alignment through its firmer base foam. For those seeking the improved comfort of memory foam for their full-size beds, the Sweetnight Prime is a superb option that comes conveniently vacuum-packed in a box shipped free to your home.

Additional Details

Beyond its construction and performance, there are a few additional details about the Sweetnight Prime Memory Foam Mattress worth noting:

  • The knit fabric cover is soft, breathable, and effectively moisture-wicking. Easy to remove and clean, the zippered mattress cover enhances cooling and hygiene.
  • CertiPUR-US has certified the foams inside Sweetnight Prime to be made without hazardous chemicals and contains low VOCs for indoor air safety.
  • With a 10-inch profile, the Sweetnight Prime fits all standard full-size bed frames with enough height for pillow topper additions if desired.
  • Sweetnight provides a 10-year limited warranty protecting against defects and excessive indentations beyond 1.5″. This protects against premature wear.
  • White glove delivery can be added to the purchase for full setup service and old mattress removal upon request.

Priced under $500 in all sizes, the Sweetnight Prime Memory Foam Mattress brings exceptional value to shoppers seeking body-contouring comfort from a bed-in-a-box full-size mattress ideal for master bedrooms and guest rooms alike.

Final Talk

Sweetnight Prime Memory Foam Mattress is known for conforming to the body’s shape and relieving pressure points. Full-size memory foam mattresses measure in perfect size – this is a common mattress size that can fit most full-sized bed frames.

“Mattress in a box” refers to how some memory foam mattress companies compress and roll up the mattress to ship it in a relatively small box to the customer’s door.

About the author

Sakibul the founder of Comfy Mattress Reviews and co-founder of Smart Housekeeping, is a product reviews analyst who researches, compares, reviews, and writes about home appliances. With his extensive knowledge and experience, he provides valuable insights and recommendations to help consumers make informed decisions when purchasing products.

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