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Derk-Jan Dijk

Derk-Jan Dijk

The Conversation

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How much sleep do I need? Why you can forget the eight‑hour rule

Eight hours isn’t necessarily the magic number for sleep. Your age, body clock and individual needs all matter.

25.08.2026 20

The Conversation

Derk-Jan Dijk

How much sleep do I need? Why you can forget the eight‑hour sleep rule

Eight hours isn’t necessarily the magic number for sleep. Your age, body clock and individual needs all matter.

25.08.2026 10

The Conversation

Derk-Jan Dijk