Affordable Full Size Mattress

Finding an affordable yet high-quality full-size mattress can be a challenge. Most budget mattresses sacrifice comfort and support, leaving you waking up with aches and pains.

However, the Sweetnight Radiant Gel Memory Foam Mattress proves you don’t have to spend thousands to get a great night’s sleep. As one of the cheapest full-size mattresses on the market, the Sweetnight Radiant Gel offers exceptional comfort and support at a very affordable price point.

In this review, we’ll take an in-depth look at this budget-friendly full-size mattress to see if it lives up to its claims.

Overview of the Sweetnight Radiant Gel Mattress

Radiant Gel Memory Foam Mattress


The Sweetnight Radiant Gel Mattress is a 12″ gel memory foam mattress offered at a very inexpensive price point. It consists of 3 layers of premium foam designed to relieve pressure points while providing responsive support for all sleep positions.

The cover is made of a soft and breathable stretch knit fabric that allows airflow to keep you cool through the night. Underneath is a 3″ top layer of gel-infused memory foam that contours to the shape of your body and provides pressure relief. This is followed by a 2″ transition layer of high-density polyurethane foam for added support.

The base is 7″ of durable, high-density support foam that gives the mattress its shape and prevents sagging. The foams are CertiPUR-US certified for durability, performance, and content.

In terms of firmness, the Sweetnight Radiant Gel Mattress is considered medium, rating around a 6 out of 10 with 10 being the firmest. This universal comfort level works well for side, back, stomach, and combination sleepers.

Key Features of an Affordable full-size mattress:

  • Very affordable price point for a full-size mattress
  • Gel-infused memory foam top layer for cooling and pressure relief
  • High-density polyurethane transition layer for support and responsiveness
  • The durable base foam prevents sagging and increases the lifespan
  • Medium firmness appeals to all sleeping positions
  • CertiPUR-US certified foams for durability and performance
  • Works with all standard full-size bed frames

Now let’s look at how the Sweetnight Radiant Gel Mattress performs in key categories important for shoppers seeking an inexpensive but high-quality full-size mattress.

Comfort and Support

Radiant Gel Memory Foam Mattress

Finding a comfortable full-size mattress for under $1000 can be a major challenge. Many end up with cheap, rock-hard beds that cause pain and stiffness. The Sweetnight Radiant Gel Mattress breaks this mold by offering exceptional comfort and support, especially considering the very affordable price point.

The gel-infused memory foam cradles your body to relieve pressure points while aligning the spine. It works great for side sleepers by cushioning the shoulders and hips. The transition layer gives the mattress some bounce while supporting the midsection, making it suitable for back sleepers as well. And the sturdy base foam provides the solid feel that stomach sleepers need.

The medium firmness balances the hug of memory foam with the support of denser polyurethane foam. The result is a comfortable full-size mattress suitable for all sleeping positions without compromising support.

Motion Isolation

Memory foam is known for absorbing movement rather than transferring it across the bed. This makes the Sweetnight Radiant Gel a great choice for people who share a full-size mattress since you won’t be disturbed when your partner moves around in bed.

The dense foams absorb energy and prevent you from feeling your partner switch positions or get in and out of bed. This level of motion isolation isn’t often found on such an inexpensive mattress, making the Sweetnight Radiant Gel stand out.

Temperature Regulation

One common issue with memory foam is heat retention, causing some to sleep hot. The Sweetnight Radiant Gel Mattress combats this with two key features – the gel-infused top layer and breathable cover.

The gel infusion pulls heat away from the body and dissipates it across the surface. This prevents heat from building up in the foam near you. The stretch-knit cover also allows ample airflow to keep the mattress surface cool through the night.

While no foam mattress will sleep as cool as an innerspring or hybrid, the Sweetnight Radiant Gel does an impressive job regulating temperature for the price.


While memory foam mattresses contour closely, they can also inhibit movement with their slow response to pressure. However, the Sweetnight Radiant Gel alleviates this issue with its transition layer of responsive polyurethane foam.

The high-density polyfoam layer gives the mattress some bounce, making it easier to change positions. This also makes it simpler to get in and out of bed compared to many pure memory foam mattresses.

The combination of contouring memory foam for pressure relief and polyfoam for responsiveness creates a nicely balanced feel perfect for an affordable full-size mattress designed for any sleeping style.


Durability is always a concern when shopping for an inexpensive full-size mattress. Many cheap beds start sagging within a year or two, forcing you to replace them. But Sweetnight designed the Radiant Gel Mattress to provide lasting quality and performance.

The high-density foams are CertiPUR-US certified for durability. This means the materials retain their structure and don’t break down easily from regular use. The sturdy 7” base foam enhances the lifespan by preventing sagging and maintaining support.

Sweetnight backs the mattress with a 25-year limited warranty, evidencing their faith in its long-term durability. Overall, this is one of the most durable and well-constructed full-size mattresses available at such an affordable price point.

Pros of an affordable full-size mattress:

  • Very inexpensive price point
  • Gel memory foam and polyfoam design balances cushioning and support
  • Minimal motion transfer for undisturbed sleep
  • Sleeps relatively cool for an affordable foam mattress
  • The bouncy transition layer prevents “stuck” feeling
  • Excellent support and comfort for all sleeping positions
  • Better durability than typical low-cost full-size mattresses

Cons of an affordable full-size mattress:

  • Minimal edge support when sitting near the sides
  • Some mild off-gassing after unboxing that fades quickly
  • Not as breathable as coil or latex mattresses

The Sweetnight Radiant Gel Memory Foam Mattress is an excellent pick for:

  • Shoppers seeking the cheapest comfortable full-size mattress
  • Side, back, stomach, and combination sleepers
  • People who share the bed and want minimal motion transfer
  • Hot sleepers looking for decent temperature regulation
  • Those wanting better support and longevity than a typical low-cost mattress

This universally comfortable full-size mattress works for all sleeping positions under 130 pounds. Heavier individuals may prefer a slightly firmer mattress with reinforced edges. The affordable price point makes it easy to outfit guest bedrooms or kid’s rooms without breaking the bank.


Finding an affordable yet comfortable and supportive full-size mattress isn’t easy, but the Sweetnight Radiant Gel Memory Foam Mattress checks off all the boxes. The medium firmness level comfortably accommodates all sleeping positions.

The breathable cover and CertiPUR-US-certified foams regulate temperature and deliver durable performance. With impressive quality and comfort at one of the lowest price points among full-size mattresses, the Sweetnight Radiant Gel is the top choice for shoppers seeking exceptional value.

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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