The style of a bedside sleeper that is easy to sell will depend on various factors, such as the target audience, market demand, and trends. However, some styles of bedside sleepers that are generally popular and easy to sell include:

1. Multi-functional bedside sleepers: Bedside sleepers that serve multiple functions, such as a bassinet, changing table, and diaper storage, are popular among parents who want to save space and money. These sleepers offer convenience and practicality, making them easy to sell.

2. Portable bedside sleepers: Portable bedside sleepers are popular among parents who travel frequently or want to keep their baby close while doing chores around the house. These sleepers are lightweight, foldable, and easy to move, making them easy to sell to busy parents.

3. Stylish bedside sleepers: Bedside sleepers that are stylish and aesthetically pleasing are popular among parents who want to decorate their baby's room. These sleepers come in various designs, colors, and materials, making them easy to sell as a part of nursery décor.

4. High-tech bedside sleepers: Bedside sleepers that come with high-tech features, such as built-in sound machines, nightlights, and temperature sensors, are popular among tech-savvy parents. These sleepers offer convenience and safety, making them easy to sell as a premium product.

5. Adjustable bedside sleepers: Bedside sleepers with adjustable heights and angles are popular among parents who want to customize the sleeper to their needs. These sleepers offer flexibility and comfort, making them easy to sell to parents who prioritize their baby's sleep quality.

In conclusion, the style of a bedside sleeper that is easy to sell will depend on various factors, including functionality, convenience, style, technology, and customization. By understanding the target audience and market demand, sellers can offer bedside sleepers that meet the needs and preferences of parents, making them easy to sell.