I guess my wording was clumsy, Im sure we do need sleep, what we do not need (according to the documentary) is the large amount of sleep we currently enjoy.
The time we sleep have been steadily declining over the last decades with no recorded side effects.
I saw a documentary stating that the reason we sleep so much is not because we needed it, but because it was an evolutionary advantage.
If we slept a lot we werent out wandering about getting killed by tigers and falling off cliffs and as previously stated, REM-sleep is not required for memory recording.
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I guess my wording was clumsy, Im sure we do need sleep, what we do not need (according to the documentary) is the large amount of sleep we currently enjoy. The time we sleep have been steadily declining over the last decades with no recorded side effects.
I saw a documentary stating that the reason we sleep so much is not because we needed it, but because it was an evolutionary advantage. If we slept a lot we werent out wandering about getting killed by tigers and falling off cliffs and as previously stated, REM-sleep is not required for memory recording.