Best Cooling Blanket Review: Heartcosy vs Tunatutu

Have you ever wondered why people use cooling blankets? In 2017, a paper titled Nighttime temperature and human sleep loss in a changing climate was published. It showed that people tend to have more atypical sleep patterns in the hot summer months compared to the cold winter months. That's because body heat is trapped under the covers. If you try to alleviate this by throwing off the blanket, the heat is completely gone and you may catch a cold. The solution for many people is to turn on the air conditioner. But this increases energy consumption and reduces humidity, and can lead to breathing problems. Therefore using a cooling blanket is the best option.

People have long been looking for materials to make cooling blankets to help hot sleepers improve the quality of their sleep. Cooling blankets can be made from a variety of breathable fabrics. And they are often made from combinations for more efficient heat exchange. The weave is usually looser than a regular blanket. This helps improve heat exchange. A very large variety of cooling blankets are available on the market. Traditional cooling fabrics include cotton, polyester, and tencel. More advanced materials include silk.

At heartcosy, we think everyone should sleep on a mulberry silk cooling blanket in the summer! tunatutu has a product that is very similar to the heartcosy cooling blanket. We will describe it for you in detail and tell you why you should choose heartcosy all the more.

Full Comparison: Heartcosy vs Tunatutu

The two companies' silk cooling blankets look very similar on the surface. But if you explore carefully, you will find that heartcosy is going to be superior. Because many details of tunatutu's products they dare not disclose.

Shipping speed

This must be your main concern.

As we know from heartcosy shipping policy, heartcosy will be shipped within 48 hours of your order and delivered to your home in about 10 days.

But, have you received the goods from tunatutu? tunatutu used to participate in kickstar crowdfunding, thousands of customers did not receive their quilts purchased from tunatutu. tunatutu has credit risk. Many customers posted bad reviews on Facebook, Instagram and other social media platforms, but tunatutu did not reply.


heartcosy silk cooling blanket filled with 400-500g high quality mulberry silk. The grade is 6A. You can unzip the blanket and try to stretch the silk to observe the length. The shell of the cooling blanket is made of 60s (woven density) Tencel. 100% Tencel is very soft. You sleep with the silky side on your body, and it feels cold.

But, you can't find the fill weight data from tunatutu's website. They won't tell you how much silk they use. Also, they claim to use tencel for their shells as well. After our test, their weave density is not 60s. Therefore, tunatutu's blanket is not as delicate as heartcosy.


Our silky cotton satin weave is combined with our diamond stitch pattern to create the most luxurious quilt ever made. The edges of the quilt are crafted with a cord inlay. It is able to hold the silk in place. As a result, heartcosy creates a washable silk cooling blanket without the worry of silk clumping.

We have no information from tunatutu about the process they use. Their product page only mentions that the quilts are quilted in washable silk, with no further explanation.


The heartcosy silk cooling blanket is priced at $189 and you can use the discount code to get 10% off.

The tunatutu silk cooling comforter is priced at $189. (You may have to take the risk of not receiving the item. No one wants to lose their money for nothing.)

Above is cooling blanket review's comparison of heartcosy and tunatutu. You must have found that buying tunatutu's products is very risky. And after comparing the product material and reputation, I am sure you will pay more attention to heartcosy.


Extended Reading

How to choose a cooling blanket?

If you are a sweaty person, you may want to stay cool while you sleep. Another option for sweat-free sleep is the Silk Cool Blanket or Washable Silk Cool Comforter. It is made of breathable Grade 6A mulberry silk and 100% Tencel™ LYOCELL, with no down or other insulation stuffed in.

People vary in the amount of body heat and perspiration they produce and the temperature they can tolerate while sleeping. Therefore, not everyone needs the same type of blanket. When purchasing a cooling blanket, the following points need to be considered.

  • Size: The size of the blanket depends largely on the size of your bed and can range from twin to king. if you expect to double the blanket on cooler nights, you may need to increase the size of the blanket.
  • Weight: Some lightweight blankets weigh only a few ounces, such as the heartcosy cooling blanket, while others can weigh up to 10 pounds. Studies show that weighted cooling blankets can increase security and help relieve anxiety, but they are not suitable for children or pregnant women.
  • Form: Cooling blankets come in many forms, including quilts, bedspreads, comforters and traditional bedspreads. Some work best on their own, while others should be used with a cooling pad.
  • Fabrics: Cotton and linen are popular for their breathability and ability to wick moisture away from the body, and are best for people who sweat a lot. If softness is your priority, choose silk.
  • High Technology: Silk regulates temperature and is best suited for climates where evening temperatures are high and nighttime temperatures are significantly lower.
  • Washing requirements: Some cooling blankets have special washing requirements and may not be suitable for everyone.

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