Best Memory Foam Mattress Under $500



Nighslee values your sleep and seeks to make every night just as comfortable as the last. Perfectly combining the comfort of memory foam and the coolness of our patented Cooling AirGel™, there is no better sleep.

Employing the cooling AirGel™ technology within the top layer, Nighslee cool gel memory foam mattresses have the confidence to dispense the heat around you and regulate your body temperature, leaving you cooler the whole night.

  • The best layer distribution in any cool gel memory foam mattress
  • Patented Cooling AirGel™ technology – 3” gel infused memory foam
  • Conforming and smart pressure point relief
  • Perfect for you, regardless of body shape or sleep position
  • Hypoallergenic, dust mite resistant design
  • CertiPUR-US® Certified & OEKO-TEX® Standard 100

Nighslee cool gel memory foam mattress

NightSlee Features

  • Nighslee Patented Cooling AirGel™ Technology
  • Eco-Friendly Hypoallergenic Bamboo Cover
  • CertiPUR-US® Certified Foam
  • Meets the Required Criteria of Standard 100 By OEKO-TEX®
  • 100-Night “Risk-Free” Sleep Trial
  • 100-Night Sleep Trial

  • Mattress in a Box

  • Ships Within 24 Hours

  • Free Shipping

Nighslee 10 inch Cool Gel Memory Foam Mattress In Box – Queen Size Under $500



Prices based on a review of Casper, Zinus and Macys websites as of 27/12/2018

Brand Firmness Top Layer 2nd Layer Bottom Layer Price ( Queen )
Conventional Low-priced Mattress Medium-Firm (5.5) 2” Gel-infused Memory Foam 2.5” Comfort Foam 5.5” High-density Base Support Foam $285
Nighslee Medium-Firm (5.5) 3” Patented Cooling AirGel™ Foam 2” Bamboo Contour™ Eco Comfort Foam 5” Supportive High-density Base Foam $525
Online Competition Medium (5) 1.5” Polyfoam 3.5” PCF Memory Foam & Polyfoam 5” 1.8PCF Support Polyfoam $995
Gel Foam Mattress Soft (3) 3″ Gel-infused ventilized memory foam 7” High-density Support Foam $1199


Millions of gel microbeads infused directly into Nighslee’s cool gel memory foam mattress to regulate body heat
within a certain temperature range so you don’t sleep hot. A true one-of-a-kind experience, just for you.

Cool And Cozy

Forty air permeable venting holes per m²

Seamless Support

Reinvented for the best edge support and comfort

Premium Memory Foam

Prolonging deep sleep by 23%

Eco-friendly Material

Recyclable and biodegradable

Nighslee’s Airgel memory foam


Nighslee mattress as medium-firm


  • 100-Night Risk-Free Trial

    Comfort you can only see to believe. We provide a 100-night trial period to test the comfort for yourself. Any dissatisfaction, we take it back. It’s THAT simple.

  • 10-Year Warranty

    Quality is our ultimate goal. Sleep soundly knowing we have got you covered for 10 years against manufacturing defects and other abnormal issues. Take a look at our “WARRANTY” page for more info.

  • Free Shipping

    Nighslee provides free home delivery service, making your online shopping a breeze. No need for second guesses.


Nighslee mattress in a box


Sleeping good every night!

My mum got a queen size mattress before, and that one is still soft, they are very comfortable, then I spend $275 for my sister’s mattress, it’s not a lot of money for a good mattress, that’s why I love Nighslee! It can bring me the same quality memory foam mattress but with the most favorable price!

I ordered two Nighslee beds on 25th Feb, then I got all of them on 1st Mar, pretty impressed about the shipping speed! Whatever, yeah, it is super soft I was sleeping good every night!

Same memory foam, so inexpensive!

I’ve been looking for a king size mattress but anytime I go look for one, I’m looking at over a thousand dollars! Well this is why Nighslee is amazing because their mattresses are so inexpensive, they are the same memory foam mattress and all the super expensive leading brands have and it also has a cooling technology which prevents you from overheating while you sleep and I can testify that this true! I have slept on this mattress two nights now and I have had the most blissful and amazing sleep ever!

Great cool gel memory foam mattress

I always wanted to find a cool gel memory foam mattress. But I love this mattress!! It doesn’t heat up at all. I would recommend this gel memory foam mattress to anyone who needs a new mattress at a great price!!

a good price for awesome stuffssss

I had a tempur-pedic before and they’re way too firm to me. And this mattress has the softness that it bounces back and it’s not too firm to me.
Also memory foam mattress hold heat very bad. What sold me on this one is it has the hole for better breathe and the air gel to keep your temperature regulated throughout the whole night no matter what seasons it is