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In this edition: How getting ready for bed is hard-wired, how clothing dyes can be recycled, and what we can do about data bias in AI.

News: Getting ready for bed \\u2013 When mice are sleepy, they make a safe nest, and now researchers have discovered the brain wiring that controls this instinct both in mice and likely in ourselves.

Making fashion greener \\u2013 We talk to the people behind DyeRecycle \\u2013 an Imperial startup that uses a new chemical process to recover dyes and colours from waste textiles, vastly reducing the water and energy use of the industry. The team recent secured an H&M Foundation Global Change Award.

Data bias in AI \\u2013 We listen in to the Science Actually podcast as they chat data bias in AI \\u2013 discussing questions including can we eliminate biases, how much should we blame big tech, and what can we do about the issue?