The manufacturing process for silk nighties can vary depending on the specific materials, design, and production methods used. However, here is a general overview of the typical steps involved:

1. Design: The first step is to create a design for the silk nighty. This can be done by a fashion designer or a team of designers.
2. Material selection: The materials used for silk nighties are typically silk or silk blends, which can include fabrics like satin or chiffon. The specific materials chosen will depend on the desired look and feel of the nighty, as well as their performance characteristics such as drape, softness, and durability.
3. Cutting: The silk fabric is cut into the desired pattern pieces using a cutting machine or by hand. The pattern pieces may include the body of the nighty, straps, and any additional details like lace or embroidery.
4. Sewing: The pattern pieces are then sewn together using a sewing machine. This includes stitching the seams, hemming the edges, and adding any necessary details like straps or embellishments.
5. Finishing: After the nighty is sewn together, it undergoes a finishing process to smooth out any rough edges and ensure that all seams are securely attached.
6. Quality control: Once the silk nighty is finished, it undergoes a quality control process to ensure that it meets the desired standards for fit, construction, and overall quality.
7. Labeling and packaging: The final step is to label the nighty with any necessary information, such as size and care instructions, and then package it for shipment to retailers or customers.

Overall, the manufacturing process for silk nighties can be complex and involve multiple steps, but attention to detail and quality control are essential to ensuring that the finished products are comfortable, luxurious, and of the highest quality.