Myra Simmons and Simmons are two well-known mattress brands. The main differences between them are as follows:

1. Material: Myra Simmons mattress uses natural coconut palm and latex and other natural materials, while Simmons uses special steel wire and polymer materials.

2. Design: The Myra Simmons mattress adopts a partitioned design to provide different supports according to the needs of different parts to improve sleep quality; while Simmons uses independent pocket spring technology, and each spring is packaged independently. Provides better support and comfort.

3. Price: The price of Myra Simmons mattress is slightly lower than Simmons mattress, but it is more cost-effective.

4. Brand awareness: Simmons is an internationally renowned mattress brand, while Myra Simmons is a well-known mattress brand in China.

In general, both brands have their own characteristics, but Simmons is more well-known in the international market. When choosing a mattress, consider your personal preference, budget, and sleep needs.