Migrant workers are increasingly filling Britain's night shifts, making up a significant portion of its essential services workforce, even as the government tightens immigration policies.

• Over the last decade, Britain's nine-million-strong nighttime workforce has become reliant on migrants.
• Julius-Cezar Macarie, a sociology professor, highlights that migrants often fill "low-skilled sectors" crucial for a 24-hour society.
• Official 2022 data shows those not born in the UK are twice as likely to work overnight.
• In the health and care sector, over a third of night workers are migrants; Omatule Ameh and Judith Munyonga are care workers expressing concern over new visa rules.
• Sandeep, a chef, and Leandro Cristovao, a warehouse manager, face visa challenges and highlight their critical role in keeping businesses operational.