some factors that may influence the popularity of bedside sleepers in the coming year include:

1. Safety features: With an increasing awareness of safe sleep practices, bedside sleepers with enhanced safety features, such as breathable mesh walls and secure anchor systems, may be in high demand.

2. Sustainability: As consumers become more environmentally conscious, bedside sleepers made from sustainable materials or with eco-friendly features may be popular.

3. Multi-functional design: Bedside sleepers that serve multiple functions, such as a bassinet, changing table, and diaper storage, may continue to be popular among parents who want to save space and money.

4. Smart technology: Bedside sleepers with smart technology features, such as Bluetooth connectivity and tracking sensors, may appeal to tech-savvy parents who want to monitor their baby's sleep patterns.

5. Style and design: Bedside sleepers that are stylish and aesthetically pleasing may continue to be popular among parents who want to decorate their baby's room.

In conclusion, predicting which bedside sleeper will sell best next year is difficult as it depends on various factors, including consumer demand, market trends, and innovation in design and technology. However, keeping up with the latest trends and consumer preferences may help manufacturers and sellers create products that appeal to a broad range of customers.