SweetNight Dreamy S1 (Whisper) Mattress Review

Sweetnight Whisper

SweetNight Dreamy S1 (Whisper) Mattress Review

✔️Last updated: May 2023

✔️Customer Rating: 5/5
✔️Mattress Advisor Score: 8.5/10
✔️Type: Memory Foam
✔️Firmness: Soft and medium-firm sides
✔️Free Shipping
✔️100-Night Sleep Trial
✔️10-Year Warranty

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Overview: SweetNight’s Dreamy S1 mattress, formally known as the Whisper, has us seeing visions of sugarplums and other wonderful desserts. With a two-sided design, it matches a variety of sleeping preferences. Plus, it comes at an affordable price and a 10-year warranty to last you for a while.

Who Is the SweetNight Dreamy S1 Mattress Best For?

SweetNight Dreamy S1 is best for: SSweetNight Dreamy S1 may not be best for:
  • All types of sleeping positions
  • Budget-conscious individuals
  • Those who change positions at night
  • Individuals who prefer memory foam mattresses
  • People who sleep hot
  • Lighter side sleepers
  • Those with sensitive shoulders

SweetNight Dreamy S1 Review Highlights

The SweetNight Dreamy S1 Flippable Gel Memory Foam Mattress is an affordable bed that comes in two firmness options. In this review, we’ll take a look at the materials used to make this mattress, discuss some of the pros and cons, and share how it performed in our Mattress Advisor lab.

Continue reading to find out if it’s the right mattress for your home.

What We Love About the SweetNight Dreamy S1 Mattress

  • The SweetNight Dreamy S1’s flippable design allows you to choose between a soft gel-infused memory foam or firm high-density foam side.
  • With a queen mattress starting at $469, the SweetNight Dreamy S1 is an affordable option for those looking to save on their next mattress.
  • As its former name suggests, the Dreamy S1 is a quiet mattress so you don’t have to worry about waking your partner up from any squeaky sounds.


SweetNight Dreamy S1 Score Breakdown

In the chart below you can see how the SweetNight Dreamy S1 mattress performed in each of our tests and evaluations. We score mattresses based on 14 factors to derive a comprehensive rating.

Learn more about our review process here.

Mattress Advisor Test Score (Out of 10)
Shipping 8.5
Trial Period 8
Return Policy 9
Warranty 9
Set-Up 7.5
Motion Transfer 8
Edge Support 9
Pressure Relief 8
Spine Alignment 9
Responsiveness 9
Cooling 8
Durability 6.5
Customer Service 8
Social Impact 9
⭐Total Score for the SweetNight Dreamy S1 Mattress: 8.5/10⭐

SweetNight Dreamy S1 Performance Highlights


  • Spine Alignment: SweetNight uses a gel-infused memory foam to keep your spine in a neutral position at night.
  • Responsiveness: This mattress does a great job of allowing you to change positions, especially on the firmer side.
  • Edge Support: When sitting on the edge of the SweetNight Dreamy S1, you may feel like you’re sitting on a chair since it has such great edge support.


  • Durability: Since this is an all-foam mattress, it likely won’t last as long as some other mattresses and may start to tear after some use on it, but because it comes at a low price it won’t be expensive to replace in a few years.
  • Set-Up: Setting up the SweetNight Dreamy S1 took a little longer than other mattresses we have tested and we noticed it took a decent amount of time to fully expand.

Edge Support

Here at Mattress Advisor, we test every inch of the mattress and this includes the edges. If you’re the type of person who likes to take full advantage of your sleep real estate, then you understand how important it is to have a bed that fully supports you. When sitting on the end of the SweetNight Dreamy S1, we felt like we were sitting in a chair, leading us to give it a 9/10 in this category.

Pressure Relief

In our mattress lab, we use a pressure relief map to see how well a mattress does at relieving pressure when you sleep. The map uses warmer colors, like yellow and red, to show areas of pressure buildup and cooler colors, like blue and green, to show where it doesn’t.

On the firm side of the mattress, it was all blue when our lighter and heavier testers lay on their backs. The map showed some pressure buildup in the hip area when the testers lay on their sides and our lighter tester also had some pressure buildup in her shoulder area.

When we tested the pressure relief on the softer side, the mattress did a good job of relieving pressure for the testers lying on their backs. We again noticed some pressure buildup in the hip area for the lighter tester when they lay on their side but the heavier tester had no pressure buildup. If you’re a lighter side sleeper, you may want to consider a mattress like the Saatva Classic, which provides a better pressure relief.

Spine Alignment

Another area we test when looking at mattresses is spinal alignment, since it’s important to maintain a neutral position at night. Our tester’s back was mostly straight when lying on their side, leading us to give it a near-perfect score. The gel-infused memory foam helps keep the back aligned properly.

Product Details

Where Does It Fall on the Firmness Scale?

Since this is a dual-sided mattress, the SweetNight Dreamy S1 has two different firmness options. The softer side is about a 5/10 on the firmness scale. The gel-infused memory foam makes it doughy and gives the feeling of sleeping in the mattress, rather than on.

We rated the other side a 6.5 since it was similar to a medium-firm mattress. In contrast to the other side, it was very elevating and made us feel like we weren’t sinking.

Does the SweetNight Dreamy S1 Sleep Cool?

Staying cool while you sleep is just as important, if not more, as when you’re awake. The SweetNight Dreamy S1 is a cool-to-the-touch mattress that uses gel-infused memory foam to help regulate your body temperature. However, since it’s a memory foam mattress, we felt it wasn’t as breathable as some other mattresses that use coils or latex. For the average sleeper, this should keep them cool enough, but if you tend to sleep hot, take a look at our top cooling mattresses.

What Sleeping Positions Does It Work For?

Most body types should find that this mattress works for all positions. Since this has two firmness options, it’s a great option for stomach and back sleepers who like a firmer support while still being soft enough for side sleepers. However, if you are a lighter side sleeper or someone with sensitive shoulders, you may want to take a look at our best mattresses for side sleepers since this mattress can cause pressure buildup.

How Much Weight Does the SweetNight Dreamy S1 Mattress Support?

The SweetNight Dreamy S1 mattress can support up to 551 lbs. If you or your partner weighs more, you might want to consider getting the mattress in a thicker model to ensure long-lasting durability. The one we tested was a queen-size 10” model, which we felt did a good job holding both of our testers.

What Foundations or Bed Frames Are Compatible?

According to the SweetNight website, their mattresses can be used with all types of bed frames. This includes those with box springs. When using slatted frames, make sure the slats are no more than 3” apart to ensure proper support.

SweetNight Dreamy S1 Mattress Materials

As an all-foam mattress, the SweetNight Dreamy S1 uses several layers of CertiPUR-US certified foam.

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  1. Mattress Cover: The SweetNight Dreamy S1 is wrapped in a skin-friendly cover, thoughtfully decorated with a swirly design.
  2. Pressure Relieving Memory Foam: Its first layer consists of a pressure-relieving memory foam, ideal for those who prefer softer mattresses.
  3. Gel-Infused Memory Foam: A breathable gel layer transfers heat away from your body at night so you can sleep at the perfect temperature.
  4. High-Density Support Foam: This layer provides a firmer option for those who prefer mattresses that give a little more support.
  5. Breathable Bottom Knitted Fabric: The SweetNight Dreamy S1 has a bottom-knitted fabric that promotes breathability.

SweetNight Dreamy S1 Sizes, Dimensions, and Prices

SweetNight offers the Dreamy S1 in various thickness options. The twin model comes in 8” and 10” options while the full and queen sizes come in 8”, 10”, and 12” options. You also can get the king model with a 10” or 12” thickness.

Size Dimensions Weight Price*
Twin 39” x 75” 33-40 lbs.  $399
Full 53” x 75” 45-55 lbs. $621
Queen 60” x 80” 51-58 lbs. $759-$811
King 76” x 80” 79-85 lbs.

*Prices do not reflect exclusive Mattress Advisor offers or discounts. Click below to see the best price for the SweetNight Dreamy S1 mattress.

What’s Unboxing Like?

The SweetNight Dreamy S1 comes wrapped in plastic and compressed in a square cardboard box. When unboxing the mattress, we noticed the box was glued shut, which made it a little harder to open. Unlike some other compressed mattresses that you can start unrolling, we had to cut the plastic off first. In total, it took us just over 2 minutes for our two testers to unbox the Dreamy S1.

Once fully unwrapped, the mattress will slowly start to expand. We noticed it took quite a bit of time for the mattress to puff up fully, especially in the corners. SweetNight advises giving the mattress 72 hours to take its full shape before sleeping on it.

Purchase Details

Before you buy a SweetNight Dreamy S1 mattress, learn about some of the purchasing details so you feel confident in your decision.

Policy Details
Delivery Compressed in a box, delivered to your door within 7-15 business days
Trial Period 100 nights
Warranty 10-year limited warranty
Return Policy Free returns
Financing Available through Afterpay, Affirm, and Amazon Rewards Visa Card

Shipping and Delivery

Mattresses ordered from SweetNight’s website ship for free via FedEx and take 7-15 business days to arrive at your desired location. SweetNight mattresses can also be shipped via UPS for an additional fee. UPS shipments typically take between 7-10 business days. Due to COVID-19, you may experience some delays by up to 15 days.

Sleep Trial Period

Like many bed-in-box companies, SweetNight offers a sleep trial period to help you try out the mattress before fully committing. Their trial period is 100 nights long, which is slightly shorter than some other companies in the industry, but since it only takes 30 days to get used to a new bed, you should be able to make up your decision during this time.

SweetNight Mattress Warranty

All Dreamy S1 mattresses bought from the SweetNight website come with a 10-year limited warranty. This begins the date you purchase your mattress and isn’t renewed in instances where you receive a repair or replacement mattress. The SweetNight mattress warranty covers the following defects:

  • Any visible and lasting indentation greater than 1.5” unrelated to a sag in the foundation
  • Physical flaws causing the mattress to crack or split despite normal usage
  • Defects in workmanship or material

SweetNight Customer Service

You can reach the SweetNight customer care team through the following methods:

  • Email support@sweetnight.com
  • Call 857-305-6091
  • Type a message to the answer bot on the SweetNight website
  • Submit a message request at the SweetNight website

Return Policy

SweetNight offers free returns any time during your 100-night sleep trial. To return your mattress, contact the customer service team so they can create a shipping label for you and arrange for your mattress to be picked up. Your refund will be issued within 1-2 days after SweetNight receives your mattress at their facility.

Is the SweetNight Dreamy S1 Right for You?

The SweetNight Dreamy S1 is an affordable option for all types of people. Since it has both a soft and medium-firm side, it matches all types of sleeping preferences. It also comes with an affordable price tag and 10-year warranty.

For those who have sensitive shoulders, we recommend finding a mattress with better pressure relief. This also might not be a great option for someone looking to buy a long-lasting mattress since it didn’t score well for durability.

Finding the right mattress can improve not only your nights but also your days.

Compare SweetNight Dreamy S1 to Other Mattresses

See how the SweetNight Dreamy S1 compares to other mattresses with our comparison tool.

Sweetnight Dreamland

Other SweetNight Mattresses

Check out these other mattress options from SweetNight:

SweetNight Dreamy S1 Mattress FAQs


Where is the SweetNight Dreamy S1 made?


The SweetNight Dreamy S1 is made in China. Their headquarters are in Guangzhou and manufacturing takes place in Foshan.


Is the SweetNight Dreamy S1 a safe mattress?


The SweetNight Dreamy S1 mattress is CertiPUR-US certified. The foam used in the bed is free of dangerous substances, such as flame retardants.


Where can I buy the SweetNight Dreamy S1 mattress?


In addition to buying the SweetNight Dreamy S1 mattress from the company’s website, you can also purchase it from Amazon. They currently are not available in furniture stores but have plans to feature them there in the near future.

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